Tag Archives: Global Warming

An Update on the Arctic Sea Ice

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As we pass through Spring on the way to summer, the sea ice in the Arctic is starting to melt. The ice usually peaks by the end of the first week in March or so, then slowly declines for a few weeks, then by about mid-May is heading rapidly towards its likely September minimum.

With global warming the ice has been reaching a lower winter maximum, and a much lower summer maximum. This is caused by warm air and water, and it contributes to global warming. The more ice on the sea for longer, during the northern Summer, reflects away a certain amount of sunlight. With less ice, less sunlight is reflected away. This is called a “positive feedback” but it is not a “positive” thing. It is a negative thing. (But it is not a “negative feedback,” that’s something different!)

We have seen a steady, but mostly recent, decline in sea ice. For years, climate science deniers have been telling us not to worry, the Arctic ice would come back.

But it hasn’t, and it is not going to.

The National Snow and Ice Data Center keeps track of the amount of sea ice on the Arctic. They have a nifty tool that you can use to plot the data from 1979 to the most recently available information, which is generally a today or yesterday. I used that tool to make a series of graphics I’d like to share with you here. Read the captions to get the key interpretations. The bottom line: Arctic sea ice reduction has accelerated and is not showing any sign of stabilizing.

I’m reminded of a saying allegedly uttered by thoracic surgeons. The bleeding always stops. Eventually. In a similar vein, I assume the reduction of Arctic sea ice will eventually stop. Then the Dinosaurs can live in the Arctic again!.

The chart with no year by year data shown. The grey line is the "baseline" which is usually a 20 or 30 year period against which to measure each year. The grey area is the range over which almost all years occur in this baseline. Since it is two standard deviations that is about 95% of the years within the baseline period. Any year outside of that line is a significant anomaly.
The chart with no year by year data shown. The grey line is the “baseline” which is usually a 20 or 30 year period against which to measure each year. The grey area is the range over which almost all years occur in this baseline. Since it is two standard deviations that is about 95% of the years within the baseline period. Any year outside of that line is a significant anomaly.
These are the first ten years of available data. Notice that during this period, essentially, the 1980s, all the years are above the average for most of the year.
These are the first ten years of available data. Notice that during this period, essentially, the 1980s, all the years are above the average for most of the year.
As we shift to the next ten year period, 1990 to 1999, the total ice cover throughout the year is less, close to the baseline average.
As we shift to the next ten year period, 1990 to 1999, the total ice cover throughout the year is less, close to the baseline average.

This trend continues in more recent years, with almost all years being below the baseline average. Remember that second graph above where all the years were above average? That shows that the baseline is set during a period of actual warming, so it is an underestimate of how much ice should be there. And now, during the period 2000 - 2009, all the years have much less ice than this.
This trend continues in more recent years, with almost all years being below the baseline average. Remember that second graph above where all the years were above average? That shows that the baseline is set during a period of actual warming, so it is an underestimate of how much ice should be there. And now, during the period 2000 – 2009, all the years have much less ice than this.
Screen Shot 2017-04-05 at 7.50.55 PM

This is the third year in a row that maximum sea ice has broken a record for being low.

Lamar Smith: Nothing more than a hippie puncher

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Congressman Lamar Smith is a well known science denier, especially a climate science denier.

Recently, he admitted that the House committee he runs is a tool of the anti-science forces.

At a recent conference at the pro-Tobacco anti-Science Koch (and others) funded fake think tank Heartland, this happened:

Smith: Next week we’re going to have a hearing on our favorite subject of climate change and also on the scientific method, which has been repeatedly ignored by the so-called self-professed climate scientists.

Audience Member: I applaud you for saying you’ll be using the term climate studies, not climate science. But I also urge you to use the term politically correct science.

Smith: Good point. And I’ll start using those words if you’ll start using two words for me. The first is never, ever use the word progressive. Instead, use the word liberal. The second is never use the word ‘mainstream’ media, because they aren’t. Use ‘liberal’ media. Is that a deal? I’ll give you a bonus. When we talk about changing the Senate rules on ending filibusters, don’t use the word ‘nuclear’ option. That has a negative connotation. Use ‘democratic’ option.

Smith agreed with an audience member that the EPA should not be regulating air quality, and that there is no limit to how far he would go in dismantling the last 8 years of environmental regulation.

Smith (a Republican, but you already knew that) also noted that Trump (a Republican as well) would pretty much do whatever Smith and the Heartland Institute want him do to: Dismantle environmental regulations generally.

Smith’s top contributor last year was an energy company, and the top industry that funds his campaign is the Oil and Gas industry.

Source of the dialog.

How Global Warming Causes Extreme Weather: New research

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I want to tell you about what may be the most important research result in the area of climate change in recent years. First, a little background.

We know from paleoclimate studies that the Earth’s climate system changes from time to time enough to leave a mark. For example, it is widely thought that during the “ice ages” (periods of extensive or moderate glaciation) over the last couple of million years, areas that are currently very dry had a lot more water. Some combination of rain and evaporation (more rain and less evaporation) conspired to fill playas (dried up lakes) or salt lakes (like the Great Salt Lake in Utah) with so much fresh water that inland basins filled and started to drain out to the sea. It is hard to imagine how the weather would have been so different to make the arid regions of the American West into very wet places, long term, but it happened.

As we head towards a warmer and warmer planet, one would think that whatever happened during the ice ages would be the opposite of what we would expect in the future. To some extent that is almost certainly true, as certain regions will likely be much dryer in a heated up world than they were during the cooler ice ages. But some patterns of climate change are not simply characterized by temperature. The pattern of movement of air, and the pattern of moisture in the air, can be different from one climate system to another in very complex ways. Perhaps (this is very conjectural) the recent intense rains we see in the American West would be a common phenomenon in a warmed world. Perhaps the phenomenon of ARkStorm, a very rare situation where several “pineapple express” style storms happen over a single winter, large ones, in rapid sequence, filling the dry valleys of the American West with giant lakes and wiping out low lying villages and most of the crop land. That kind of feels like the Pleistocene when the great inland deserts were converted int great inland lakes! Or, perhaps the multe-year california drought that we experienced up until just a few months ago will become the “normal” situation.

Don’t get me started, but it is not difficult to imagine a world in which the American west has 4 to 10 year long droughts punctuated with a couple of winters in a row sufficiently wet to fill those lakes, so we get both!

ADDED: Jet Streams, Extreme Weather and Other Things with Stefan Rahmstorf

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Here is the point of all this: Back in the 1950s through the early 1980s, by my estimation, North America (and probably many regions in the world) experienced stereotypical storm patterns that were like storm patterns seen over many centuries, though with the occasional interruption for something strage for a few years. 1860 – 1861 were strange years out west. The 1930s were strange in a lot of places. But what happened startomg around 1980 or so was different.

Prior to 1980s, storms in North America came from certain directions, were more common during certain times of years, dropped a range of precipitation amounts on the ground, and rarely were severe in the amount of rain that occurred. After 1980, the timing and various aspects of the physical nature of those storms including their apparent directionality and the speed which with they passed through, changed.

For example, in Minnesota, at the Twin Cities airport, there was an average of about 1.64 above 2 inch rainfall events per year for the hundred years of record keeping before 1971. In the time following, to the present, that number went up to about 2.7. Since about 2000 that number has gone to close to 3.5. Meanwhile, out east, the frequency of large blizzards has gone from one every few years to at least one in most years.

Putting this a slightly different way, the chance in a given year of having a major storm around these parts has more than doubled, with that doubling happening well within the lifetime of most of the people who live in the region.

I’ve written before about a special class of research on climate change that I have always regarded as among the most important. The authors of that earlier work overlap with the most recent work, with a key player being Stefan Rahmstorf. Rahmstorf and his colleagues, a few years ago, tackled an interesting problem that others had also noticed, and for which a number of explanations were floating around. Speaking of floating, this work surfaced and got some real traction when the Rocky Mountains near Boulder, and up near Calgary, were each hit by a really bad and very special kind of storm.

In each case, the storm system was trained along a very curvy and slow moving jet stream. When the jet stream slows it curves, or when it curves, it slows, or, really, kinda both. When that happens, if there is a big wet storm following along in the air system that itself creates/is created by the jet stream, that storm also slows. Fed by a more or less unending supply of moisture, such a storm can drop a lot of rain on a given region. We tend to think of the most severe storms as being fast moving, and they often are. Hurricanes can be pretty darn fast. Rapidly moving fronts coming off a dry line are associated with either tornado outbreaks or derecho storms. But these big and slow jet stream mediated storms are very very wet. Calgary was badly flooded, like no one has seen before. Boulder was very badly flooded more than in anyone’s memory.

Storms like this happen now and then, and can be found in historical records, and may have even happened in or near Calgary or Boulder at some time in the past. But since Calgary, we have had many many more such storms. Here in Minnesota, we’ve had a few. St. Louis had one. Texas had had a bunch of them. They’ve happened in China, Japan, all across Europe.

These storms, which are associated with a jet stream that is curvy and slow, are now common, and they were once rare.

What is the climate change connection? How do we know that global warming causes this?

There are a couple of different lines of evidence. First, as noted by the earlier work, and exemplified in the graph I put at the top of the post, which I made a couple of years ago, researchers have noticed that these curvy jet stream are more common. Another reason to think this is that curvy jet streams are expected to be associated with an Arctic that is warming more rapidly than the rest of the planet.

How does that work? I can explain it in general terms that will probably make some atmospheric scientists yell at me, but that I think is close to reality and also understandable by the average science-savvy civilian.

The big features of the weather system on a planet with an atmosphere have to do with heat reaching equilibrium across the planet. There is more heat near the equator, less near the poles, so it is all about heat moving from the equators to the poles, but also, hot stuff, water or air, making that journey. This hypothetically sets up an interesting phenomenon in the atmosphere that can be thought of as a giant twisting donut — a plain round donut shaped donut, not some hipster cream filled donut — just north of the equator, and another donut just south of it. Air is moving up in altitude at the equator, cools and spreads away from the equator, then drops back down to the surface, and heads back to where it was originally heated to get warmed up again.

This pair of giant twisting donuts of air helps set up another giant twisting donut of air to the north and south, and those donuts can, in turn, set up another, and so on. On a small planet like Mars, with a thin atmosphere, there may be one single donut per hemisphere. On giant heavy atmosphere planets like Jupiter and Saturn, you get many such donuts, and an overall striped appearance from a distance.

On earth, you get one really well defined donut (in each hemisphere) then a poorly defined donut, then another donut that is fairly well defined but that is also rotating in a circle, around the pole, much like a donut that got partly stepped on, rolled out the door of the donut shop, and his heading down the street.

Now here’s the thing, the explanation you can understand once you rap your head around these donuts: If the difference in heat at the equator vs. at the poles is great, the donuts are well defined and energetic. If the difference in heat between the equator and the poles is less, the donuts become less well defined, wobbly, and curvy.

The upper atmosphere region between adjoining donuts and the jet stream are more or less the same thing. So, as the arctic warms faster than the rest of the planet, the donuts change their configuration and you get curvy jet streams that can set up to remain in the same location over long periods of time.

Simple.

There was, however, a major missing part of this theory, and Michael Mann, climate scientist, joined the Rahmstorf et al team to fill in that blank. It is very difficult to be sure that a climatic phenomenon is either a) for real or b) characterizable as you’ve witnessed it, when you are looking at it for just a few years. If there is a change in climate because of the above described effects, there are not too many years of data allowing us to track it, observe its variations, or to figure out exactly how it works. This is complicated by several factors. For example, an alternate but similar explanation for the waves themselves, and the weather that comes with them, is the warming of the North Pacific. Hell, it could be both factors, because both factors may reduce the heat differential between the midriff and heads of the planet.

There are two obvious solutions to this problem. One is to sit back and wait a hundred years or so and collect data then consider the problem with a lot more information at hand. I’m sure climate scientists are busy doing this as we speak, but it may take a while! The other is to use climate modeling to simulate long periods of time, and see if quai-resonant waves and changes in the weather pattern are associated with anthropological global warming.

Michael Mann told me “that there is now a detectable influence of anthropogenic climate change on jet stream dynamics associated with extreme, persistent weather events like the 2010 Russian heat wave/wildfires, 2011 Texas heat wave/drought, 2013 European floods, etc. This is the first article, in my view, to demonstrate a robust such connection.”

This research involved combining some 50 climate models that comprise the CMIP5 project, and historical observations of climate over time. They found that under conditions of a warming Arctic, “standing waves” (quasi-resonant waves in other parlance) formed, just as we’ve seen during recent bad weather events. Above, I focused on rainfall events, but drought, extreme fire conditions, etc. are the other side of the coin, or rather, the other side of the jet streams. A persistent standing wave in a jet stream can cause a few nice and sunny days to transform into several years lack of rain, and a drought.

“Both the models and observations suggest this signal has only recently emerged from the background noise of natural variability. We are now able to connect the dots when it comes to human-caused global warming and an array of extreme recent weather events,” said Mann.

Here is the abstract of the paper:

Persistent episodes of extreme weather in the Northern Hemisphere summer have been shown to be associated with the presence of high-amplitude quasi-stationary atmospheric Rossby waves within a particular wavelength range (zonal wavenumber 6–8). The underlying mechanistic relationship involves the phenomenon of quasi-resonant amplification (QRA) of synoptic-scale waves with that wavenumber range becoming trapped within an effective mid-latitude atmospheric waveguide. Recent work suggests an increase in recent decades in the occurrence of QRA-favorable conditions and associated extreme weather, possibly linked to amplified Arctic warming and thus a climate change influence. Here, we isolate a specific fingerprint in the zonal mean surface temperature profile that is associated with QRA-favorable conditions. State-of-the-art (“CMIP5”) historical climate model simulations subject to anthropogenic forcing display an increase in the projection of this fingerprint that is mirrored in multiple observational surface temperature datasets. Both the models and observations suggest this signal has only recently emerged from the background noise of natural variability.

Historical data and cutting edge modeling and analysis strongly indicates that global warming, caused by human release of greenhouse gas, is increasing the frequency of persistent weather extremes such as very wet or very dry conditions. This paper looked at the northern hemisphere summer.

We have long passed the point where you can say with a straight face, “you can’t attribute a given weather event to global warming.” Climate change is change in climate; weather is climate today, climate is weather long term. Weather generally carries the climate change signal, and some of the weather is very different than it was prior to recent decades because of that change. You can’t separate a given weather event from global warming.

Michael E. Mann, Stefan Rahmstorf, Kai Kornhuber, Byron A. Steinman, Sonya K. Miller & Dim Coumou, 2017, Influence of Anthropogenic Climate Change on Planetary Wave Resonance and Extreme Weather Events.

Broadcast Media Dropped The Climate Change Ball in 2016 UPDATED

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Media Matters has an amazing and rather depressing report out on the way broadcast media in the US covered climate change.

I’m going to give you a handful of bullet points that reflect only some of the results of this detailed study, then you go read it.

<li>Bottom line: Coverage in 2016 was a fraction of the previous year, even though there was more climate change news in 2016 than most years ever have.</li>

<li>ABC covered climate change for a total of six minutes during the entire year of 2016</li>
  • None of the major networks discussed the climate related consequences of a Clinton vs. a Trump presidency
  • In most areas, PBS did better than the commercial networks.
  • There was not a single mention of national security concerns related to climate change, and almost noting on public health impacts
  • The Clean Power Plan was virtually ignored on Sunday shows and hardly covered anywhere else
  • Climate change denial got uncritical coverage by CBS, Fox and PBS, all sourced from Trump campaign people or Trump himself
  • The Exxon Knew story was completely ignored by the major networks.

    • Read: How Broadcast Networks Covered Climate Change in 2016

    _____________________________________________
    Best and current books on Climate Change
    _____________________________________________

    UPDATE:

    From Media Matters:

    U.S. senators are calling on broadcast networks to fulfill their duty and bolster their news coverage of climate change, after a Media Matters study found that the networks dramatically decreased their coverage of climate change in 2016, during a campaign in which the U.S. elected a climate denier as president.

    Sens. Sheldon Whitehouse (D-RI) and Brian Schatz (D-HI) issued statements this week calling on the major broadcast networks to fulfill their responsibility and provide audiences with essential reporting on the impacts of and science surrounding climate change, as well as related policies. The senators’ statements were made in response to a study by Media Matters finding that in 2016, evening newscasts and Sunday shows on ABC, CBS, and NBC, as well as Fox Broadcast Co.’s Fox News Sunday, collectively decreased their total coverage of climate change by 66 percent compared to 2015.

    Read the statements from the Senators here.

    The Great March Storm of 2017 (updated)

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    The Key for the above graphic:

    pauldouglas_1489448217_wssi4

    Donald Trump’s FEMA is not ready for this storm. The entire federal government is understaffed, and there are funding problems, and this applies to FEMA as well.

    So, if you are anywhere in the area to be affected by this storm (the weather channel calls it Stella, I call it Trump’s Storm One because it is the first big storm on his watch) you need to know that the usual help is not necessarily going to be available.

    Maybe we should call it the Ides of March Storm.

    A very large area will probably get a very large amount of snow. Keep up with your local NWS forecasts, which are still available and still useful. (Don’t expect that to be the case this time next year. Those reports and forecasts require funding that is being cut by the Trump Regime as we speak.)

    Where will the storm hit hardest? Don’t assume anything, but Pennsylvania, New Jersey, New York, and New England are in the main target zone. There will likely be some snow in Maryland, DC, and that area.

    How much snow will fall? Anywhere from zero to about two feet, depending on where you are.

    What is the most accurate forecast for this storm? This:

    Screen Shot 2017-03-13 at 8.40.01 PM

    I give you this highly accurate but not at all precise forecast with a bit of snark because I’m actually a bit tired of the bullshit that accompanies storms like this.

    Remember, a couple of years ago, a big storm was predicted to hit much of New York and New England, with the possibility of significant snow in New York City? Hardly any snow fell in New York City. This caused the weather deniers (not just the climate change deniers, but the larger group of people who practice studied ignorance when it comes to weather) to insist that the blizzard had never happened.

    This is what happened:

    BlizzardOf2015

    Yeah. This big giant storm came along, with the possibility that it could extend across The City, but it didn’t. So, that one little thing was different about the storm, and this caused all these people to go full apoplectic. Having had enough of that, see my forecast above. There is a whopping big storm coming, we really don’t know how big it will be or where it will drop the most snow or do the most damage. But …

  • there will be snow, some deep
  • there will be flooding somewhere on the coast
    • <li>there will be big ass winds</li>

<li>there will be loss of visibility in blizzard zones, wherever they happen</li>

<li>power lines will go down</li>

<li>roads will close</li>

<li>various services and schools and such will close</li>

    If you are a long term denizen of the region from just outside of New York City all the way down east, you know what to do. If you live in New Jersey or Pennsylvania, you may have to search your memory for a bad storm experience, but I’m sure you can think back to one. If you live along the coast down towards Washington, prepare yourself for one of those annoying snow storms that no one believes can happen but that in fact happen every year, under the currently changed climate. Might be time to start getting used to that!

    And yes, there is a climate change connection. More than one, actually. This is a Global Warming Enhanced Storm (GWES).

    Good luck everybody. Report in if you have an interesting story to tell! Also, drop the White House a line and ask them how they are doing staffing up FEMA.

    Dr. Gavin Schmidt’s Epic Response to Scott Adams

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    Scott Adams is the creator of Dilbert, the once funny but now highly repetitive cartoon about a nerd who has a job in an office.

    Dr. Gavin Schmidt is high up in the top ten list of world class climate scientists. He is Director of the currently under siege GISS Unit of NASA, where much of the climate science done by that agency is carried out. If you read my blog, you’ve read his work, because you also read RealClimate, where GS writes about climate science in a manner designed to be understandable to the intelligent, honestly interested, thoughtful individual.

    Adams has a history of going after core science concepts, often substituting scientific reality with his own. He has done so with climate science.

    And, he’s done it again. In a recent blog post (of yesterday) Adams tries to “convince skeptics that climate change is a problem”

    This is a re-hash of earlier posts he’s written, in which he does the old denial two step. Of course climate change is real, he says. I’m not a scientist, he says. I don’t know jack about climate science in particular, he says. Then, he uses up piles of ink telling climate scientists how they’ve got all the science wrong.

    His objective, I assume, is to spread and nurture doubt about climate science and science in general.

    Dr Schmidt caught a tweet of Adams’, pointing to his absurd blog post, and responded with a series of tweets addressing all the things.

    I wanted to preserve this excellent, well documented and richly illustrated TweetTextBook, and it occurred to me that you might want to see it too. So, here are the tweets.

    Feel free to add additional relevant tweets to the comments, if you like. I hope this doesn’t break the Internet.

    Climate change is real, it is a problem, and it is getting worse

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    The year 2016 was messy and expensive and full of climate change enhanced weather disasters. There were, according to Jeff Masters and Bob Henson, over 30 billion dollar disasters last year.

    This is the fourth-largest number on record going back to 1990, said insurance broker Aon Benfield in their Annual Global Climate and Catastrophe Report issued January 17 (updated January 23 to include a 31st billion-dollar disaster, the Gatlinburg, Tennessee fire.) The average from 1990 – 2016 was 22 billion-dollar weather disasters; the highest number since 1990 was 41, in 2013.

    The frequency of flood disasters in Europe have doubled over 35 years.

    The number of devastating floods that trigger insurance payouts has more than doubled in Europe since 1980, according to new research by Munich Re, the world’s largest reinsurance company.

    The firm’s latest data shows there were 30 flood events requiring insurance payouts in Europe last year – up from just 12 in 1980 – and the trend is set to accelerate as warming temperatures drive up atmospheric moisture levels.

    Globally, 2016 saw 384 flood disasters, compared with 58 in 1980, although the greater proportional increase probably reflects poorer flood protections and lower building standards in the developing world

    As I’m sure you’ve heard, he year 2016 was the hottest year on record, and 2017 is also going to be hot. (I personally doubt 2017 will be hotter, but then again, I was thinking that 2016 might not break the 2015 record.)

    Mark Bgoslough as an interesting piece here on how global temperature records are made, analyses, and reported. I recommend reading that. Here, I want to use a graphic he made for that item to point something outI’ve added the green lines. I’ll just leave it here without comment.

    paus_in_global_warming_never_happened

    People in the northeastern US should be about 50% more concerned about global warming than everyone else, because new research suggests that this region will warm about 50% faster than the globe in coming years.

    The fastest warming region in the contiguous US is the Northeast, which is projected to warm by 3°C when global warming reaches 2°C. The signal-to-noise ratio calculations indicate that the regional warming estimates remain outside the envelope of uncertainty throughout the twenty-first century, making them potentially useful to planners. The regional precipitation projections for global warming of 1.5°C and 2°C are uncertain, but the eastern US is projected to experience wetter winters and the Great Plains and the Northwest US are projected to experience drier summers in the future.

    John Abraham summarizes and interprets the results here.

    Regardless of the so-called temperature target, what this study shows is that even if we do keep the globe as a whole to a 2°C temperature increase, some regions, like the Northeast United States will far exceed this threshold. So, what is “safe” for the world is unsafe for certain regions.

    A recent poll tells us that 90% of rural Australians are concerned about the impacts of climate change. Most were concerned about drought and flooding. Fewer than half this coal fire power stations should be phased out.

    I think that if you did a similar poll in the US, you would find that most rural Americans don’t are about climate change, and even fewer think coal should be phased out. Since all rural people, Australians or Americans and everyone else, have already been affected to at least some degree by climate change, and since the science strongly suggests that things will get much worse for them in the future, all of these folks should be concerned and all of them should be for doing something about it. The good news is that the cognitive dissonance we see in the Australia between climate change and concern may be a harbinger for future changes in American attitudes. Australia has probably been affected by severe weather caused or enhanced by climate change to a much larger degree than has Rural America. In short, I expect disdain for coal to catch up to concern about climate change in Oz, while in America, eventually, people will get more and more on board with both.

    Americans are more concerned about not offending farmers than they are about saving them. In American farmlands, we expect climate change to reduce staple crop production substantially by the end of the century. The farmers need to get on board more quickly if they want their grandchildren to be able to be farmers too.

    A question on everyone’s mind: “Is the California Drought over and what does this mean?”

    It looks over. Reservoirs are filling, snow is piling up in the mountains, everything is wet.

    However, there are several things still to consider. For one, the recharging of water supplies is not complete, and if near-zero-rain conditions return right away, the drought will slowly return. This is of course always a concern, but right now we have a slightly different question to ask for California. Is it the case that the conditions that led to the California drought are the “new normal” (a phrase I’m not really happy with) I the sense that from now on, there will be less snow pack, less rainfall, etc. In other words, is it the case that the future of California is generally much dryer all the time with the occasional drenching rainy season, because of climate change?

    We don’t know yet, but there is one fairly obvious area of concern: Snow pack. Snow pack plays a role in watering California. Snow pack forms during the rainy winter, and slowly melts thereafter. If that precipitation wasn’t temporarily stored up as snow, the winter rains would be more flooding, and there would be less water retained in the system for the rest of the year. Increasing warmth, due to global warming, has caused more of the precipitation that falls in the mountains to be rain rather than snow, and it has caused the snow to melt more quickly.

    Warmer temperatures also mean more evaporation, so getting everything all wet and squishy for a few months during the Winter may mean less a few months later when a warm and dry atmosphere starts to drunk the moisture out of the ground and off the reservoir’s surfaces at an accelerated rate.

    This piece by Andrea Thompson at Climate Central does a great job of summarizing the current situation in California.

    I have been noting for years (well, for a couple of years) that the best available paleo data suggest that the current levels of CO2 and/or temperature, protracted over a reasonable amount of time, should be associated with sea levels of about 8 meters. In other words, if you are worried about sea level rise, and you should be, the amount of sea level rise that we are currently locked into is enough to inundate much of Southeast Asia’s rice growing land, large parts of various US states such as Louisiana and Florida, and to cause retreat from many of the world’s most densely settled cities.

    Over recent months the interface between the scientific research and journalism has started to squeeze out the occasional example of this startling fact, one we’ve known for years but have been afraid to say about else we be considered non reputable. From the Independent:

    The last time ocean temperatures were this warm, sea levels were up to nine metres higher than they are today, according to the findings of a new study, which were described as “extremely worrying” by one expert.

    The researchers took samples of sediment from 83 different sites around the world, and these “natural thermometers” enabled them to work out what the sea surface temperature had been more than 125,000 years ago.

    How long will this take? Nobody knows. This depends on how fast the major glaciers melt.

    Carlos Gimenez, mayor of Miami, is already rolling up his pants:

    “Let’s be clear, sea-level rise is a very serious concern for Miami-Dade County and all of South Florida,” Mayor Carlos Gimenez told the crowd Wednesday morning at the South Miami-Dade Cultural Arts Center during his annual State of the County address. “It’s not a theory. It’s a fact. We live it every day.”

    Read more here.

    The British Antarctic Survey is abandoning its Halley Base, in Antarctic, because the ice shelf on which it is located had developed a huge crack, so it is no longer safe to be there. They’l be out by the end of March. The crack is known as the “Halloween Crack.” Here’s a short video:

    In the Arctic, sea ice growth so far this year is below any previously observed year. From the National Snoe and Ice Data Center:
    Screen Shot 2017-02-05 at 12.08.19 PM

    About Bangladesh:

    Along the coast lies Kutubdia, an island in the Bay of Bengal where lush green rice fields give way to acres and acres of flat fields. Consisting of small rectangles of varying hues of brown, they are salt fields. The encroachment of saline water from rising tides has made rice farming impossible.

    They now “farm” salt. That is not euphemism for farming in salty conditions. They take salt out of the water. That is not a business that will have a lot of future when everybody else along the coasts of low lying countries are doing it as well.

    At the end of 2015, it looked like the negative effects of climate change were accelerating. That turned out to be true, and acceleration of the effects continues. This is probably not a good time to official deny the reality and importance of climate change, but that seems to be what we are doing in the United States.

    Chile’s Devastating Fires: Another Climate Change Story

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    There have been significant wildfires in Chile since November, and they continue. These are the worst fires Chile has seen in known history, and Chile has been keeping track of its history for quite a while.

    Are these fires climate change caused? Apparently so. Chile has had a rain deficit for well over a decade, though it as been extra dry for about five years. Drought experts call it a “mega-drought.” Droughts tend to have climate change links, and this one is no exception. A study from just one year ago links anthropogenic climate change to the drought.

    Within large uncertainties in the precipitation response to greenhouse gas forcing, the Southeast Pacific drying stands out as a robust signature within climate models. A precipitation decline, of consistent direction but of larger amplitude than obtained in simulations with historical climate forcing, has been observed in central Chile since the late 1970s. To attribute the causes of this trend, we analyze local rain gauge data and contrast them to a large ensemble of both fully coupled and sea surface temperature-forced simulations. We show that in concomitance with large-scale circulation changes, the Pacific Decadal Oscillation explains about half of the precipitation trend observed in central Chile. The remaining fraction is unlikely to be driven exclusively by natural phenomena but rather consistent with the simulated regional effect of anthropogenic climate change. We particularly estimate that a quarter of the rainfall deficit affecting this region since 2010 is of anthropogenic origin. An increased persistence and recurrence of droughts in central Chile emerges then as a realistic scenario under the current socioeconomic pathway.

    Heat on top of the drought adds to the likelihood of fires. Decreased snow pack from reduced rainfall and increasing temperatures at altitude also contribute.

    Here is the Climate Signals attribution schematic for this event. Click through to climate signals for more.

    Evangelicals and Climate Change

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    The term “Evangelical” is a bit of a moving goal post. But, there is a strong association between Evangelical and getting climate science totally wrong in a way that is actually materially damaging to our planet and to future generations. So, it is not hard to be angry at Evangelicals because they are ruining it for everyone.

    But, within the “Evangelical” movement, there are people who are trying to change that. I wish them luck. One person is Katharine Hayhoe, and here she is talking about that:

    Another is my friend Paul Douglas, famous meteorologist. He wrote Caring for Creation: The Evangelical’s Guide to Climate Change and a Healthy Environment:

    Climate change is a confusing and polarizing issue. It may also prove to be the most daunting challenge of this century because children, the elderly, and the poor will be the first to feel its effects. The issue is all over the news, but what is seldom heard is a conservative, evangelical perspective.

    Connecting the dots between science and faith, this book explores the climate debate and how Christians can take the lead in caring for God’s creation. The authors answer top questions such as “What’s really happening?” and “Who can we trust?” and discuss stewarding the earth in light of evangelical values. “Acting on climate change is not about political agendas,” they say. “It’s about our kids. It’s about being a disciple of Jesus Christ.” Capping off this empowering book are practical, simple ideas for improving our environment and helping our families and those around us.

    So, if you are an Evangelical, take heed. If you are not, find one and pass these items on to them.

    AMOC Amok: Global Warming Bad News

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    You already know abut the North American Conveyor current. Briefly: The major ocean currents happen because the equatorial ocean is warmer, and since water (unlike land) can move (though not as fast as air) the dissipation of this heat across the surface of the Earth results in warm water moving, at the surface, north or south away from the Equator, where it loses its heat and finds it way back to the equatorial regions, usually as deeper, cooler water.

    Conveniently, this process also involves increasing the salinity of the water far from the equator, as evaporating water becomes saltier. This saltier water is therefore both cold and dense, so it sinks, drawing the warm surface water into the evaporation regions. Something like this is happening at a small scale around all the oceans, but the density driven conveyor is the biggest driver of ocean currents, most significant with respect to weather, and most famous, in the North Atlantic.

    With global warming, the fresh water budget and distribution in the northern latitudes, in the Atlantic, changes, with more fresh water coming out of the Arctic and off of Greenland. This freshens up the hypersaline engine of the Atlantic Conveyor, also known as the Atlantic Meridional Overturning Circulation (AMOC). When that engine slows or shuts down, the currents in the entire North Atlantic, and beyond, change.

    Here is the number one reason this is important (though number two may be more important, I’ll get to that in a moment). You know how England is warm and Maine is cold, though they are both really far north? London, Saskatoon, and Adak are all at about the same latitude. Paris, Quebec City, and Thunder Bay. Northern Europe is warmish, and habitable, even in Scandinavia, because of the heat that the AMOC transfers from ocean to land.

    If the AMOC shuts down or moves really far south, Scandinavia, which is at the same latitude as Hudson Bay, will act more like Central Canada, which it does not do today.

    screen-shot-2017-01-06-at-9-50-40-am

    Visiting London from Minneapolis in the Winter now means going to a warmer (if dreary and foggy) place. Without the AMOC, it will be more like going to central Canada.

    screen-shot-2017-01-06-at-9-51-14-am

    The above strip maps make it look like there is an equivalence across different longitudes at a given latitude. This is not true. The ocean, even without the AMOC, will still warm Western Europe. But now, there is a gradient of warmth from eastern North America over to Europe, where a mostly non freezing winter shifts north to a degree that is nothing short of spectacular. Without the AMOC, that shift will be modest. And, interior areas in Eurasia, such as Moscow, will also cool down (though relatively not as much).

    Newly published research tells us something new and troubling about AMOC deterioration. Current climate models suggest that this may happen, but it is unclear to what degree and when. Physical evidence shows the actual real life weakening of AMOC in recent years. So, reality seems to be outpacing the models. Some have suggested that this means that AMOC varies a lot, and will likely swing partly out and back in. Others are not so sure.

    The recent research identifies a bias in the generally used climate models that causes AMOC to be more stable and long lasting, under global warming, than it might in real life. When the model is run with and without the bias corrected, you get very different results (see graph above).

    This is a preliminary finding. The model has not been run enough times, and a few other things that are usually done have not yet been done. But the results are interesting enough that it is getting some serious attention.

    global_warming_youll_be_dead_by_then_but_i_wont_beOne of the world’s experts on this topic, Stefan Rahmstorf, has written this up on RealClimate: The underestimated danger of a breakdown of the Gulf Stream System. The original research is here, but you may need a subscription.

    I should mention that the collapse of the AMOC that happens when this model is run occurs in the somewhat distant future. That makes it worse, of course, because even more people will be living in, and depending on, the affected region than today. But it also allows us to ignore the problem because, hey, who cares about what happens to our children anyway, right?

    Oh, and on that other thing that could happen if AMOC shuts down. This is speculative, but we do know that in the past large areas of ancient versions of the Atlantic Ocean and other seas have essentially died, become anoxic over large areas, so they become sources of dead matter rather than edible fish and stuff. This is how many of the major oil supplies we exploit today formed. I would imagine that shutting off the relatively restricted North Atlantic basin from much of the global circulation would be a first step in killing the ocean. So, there goes that food supply, and possibly, that source of oxygen. You know, for eating and breathing and stuff.

    Trump Is Compiling Science Enemy Lists UPDATE: “NO,” DOE

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    UPDATE: The Department of Energy has reportedly refused Donald Trump’s request for names of DOE employees and contractors who have been engaged in climate change research. That does not mean that Tump will never get those names. Once he is President, he can get the names. But for now, he’ll have to sit it out.

    The Donald Trump transition team circulated an eight page questionnaire to the US Department of Energy. Such questionnaires are not normal. This particular questionnaire is deeply disturbing.

    There are seventy-four questions. They provide insight into likely Trump administration energy policy, and there is not much of a surprise there. Most disturbing are the questions that elicit the sort of information one would gather at the outset of a purge or harassment campaign against a class of individuals, in this case, climate scientists and related personnel.

    Here I provide text of a handful of the questions, brief descriptions of others, and a link to a copy of the original document, which was originally “obtained” by Bloomberg.

    At the bottom of the post, I also provide a link to a letter from a leading member of Trump’s DOE transition team, possibly leaked (but maybe intentionally distributed, I’m not sure).

    (Please check out this interview with science policy and politics expert Shawn Otto about Trump and Science.)

    11. Which Assistant Secretary positions are rooted in statute and which exist at the discretion and delegation of the Secretary?

    In other words, which senior people at DOE can we get rid of and which are we stuck with. Question 33 more or less asks the same question again, but slightly differently.

    12. What is the statutory charge to the Department with respect to efficiency standards? Which products are subject to statutory requirements and which are discretionary to the department?

    In other words, can we roll back efficiency standards, because … because Exxon-Mobile wants to sell more oil? … because we want to increase the rate of climate change because we know the 1% will do better than anyone else? … because we want to punch some hippies?

    13. Can you provide a list of all Department of Energy employees or contractors who have attended an Interagency Working Group of the Social Cost of Carbon meetings? Can you provide a list of when those meetings were and any materials distributed at those meetings, emails associated with those meetings, or materials created by Department employees or contractors i anticipation of or as a result of those meetings?

    In other words, we would like to compile a list of administrators and scientists who are working in the climate change area, assess their position on climate change, and and then begin a campaign of bullying, harassing, and general ruining the lives of, those individuals and their colleagues and families?

    14. Did DOE or any of its contractors run the integrated assessment models (IAMs)? Did DOE pick the discount rates to be used with the IAMs? What was DOE’s opinion on the proper discount rates used with the IAMs? What was DOE’s opinion on the proper equilibrium climate sensitivity?

    What’s that all about? The IAMs are related to the more familiar to you (I’m guessing) RCPs (Representative Concentration Pathways). Simply put, these are complicated models that try to take into account everything from energy policy and use to how changes in greenhouse gas concentrations in the atmosphere change climate. There are two main known unknowns here. First, is how much CO2 and other greenhouse gasses we put into the environment (but that is an oversimplification) and the other is climate sensitivity, which is how much will global surface temperatures rise with a doubling of CO2 in the atmosphere (again, an oversimplification).

    Climate sensitivity is a dog whistle. If you are a science denier, you say “climate sensitivity is 1.2” but if you understand and accept the basic science, you say “Nobody knows for sure, but somewhere between 2.0 and 6.0, most likely very close to about 3.0 or 3.5.”

    15. What is the Department’s role with respect to JCPOA? Which office has the lead for the Department?

    This is not related to climate change, but I thought I’d throw it in there anyway. The JCPOA is the Iran Deal.

    16. What statutory authority has been given to the Department with respect to cybersecurity?

    Again, not related to climate change, but given the recent revelations that Russia has been effectively manipulating US elections, and it is hard to imagine how The Donald got elected President of the United States, and given Trump’s Russian associations, it makes sense that the Trump transition team would want to keep track of this sort of thing.

    Probably, he could just ask the Russians instead of the DOE, but, well, whatever.

    17. Can you provide a list of all Schedule C appointees, all non-career SES employees, and all Presidential appointees requiring Senate confirmation? Can you include their current position and how long they have served in the Department?

    These seem like reasonable things to know, if you are taking over the government and are responsible for staffing. But keep in mind that a) no one has ever done a questionnaire like this before; b) there is a transition process that is normally used that presumably addresses these issues; and c) we are talking about links between a part of the government that handles energy and climate and the outside world. If you were trying to build a list of Climate Enemies, this is where you would start. We have to assume, for the purposes of safety and security from what looks like it is going to be a tyrannical government, that this is what Trump is doing.

    18. Can you offer more information about the EV Everywhere Grand Challenge?

    The EV Everywhere Grand Challenge is “the umbrella effort of the U.S. Department of Energy (DOE) to increase the adoption and use of plug-in electric vehicles…”

    19. Can you provide a list of Department employees or contractors who attended any of the Conference of the Parties (under the UNFCCC) in the last five years?

    This, of course, is asking for a list of DOE employees and beyond who are involved in climate change research. The UNFCCC is the United Nations Framework Convention on Climate change.

    30. Which programs with DOE are essential to meeting the goals of President Obama’s Climate Action Plan?

    The incoming Trump administration has indicated that it will reverse whatever it can among Obama’s accomplishments. We must assume that here, the incoming Trump administration is asking for a ready-made short list of things to eliminate in their apparent effort to move our civilization ever closer to apocalyptic doom.

    There are several questions about the DOE’s Energy Information Agency, which is where you go to find out about how much energy we use, of what kind, where it comes from and goes, etc. In other words, the EIA provides an important set of baselines from which one might analyze, track, plan, and generally work on an energy transition. These questions seem to indicate an interest in moving away from renewables, or more precisely, towards changing assessment of energy policy to make renewables look less viable and fossil fuels look more necessary for a longer period of time. This seems to also indicate, unsurprisingly, a pro-fracking stance.

    There are several vague questions about the DOE’s Environmental Management and the Handford nuclear waste site.

    There are several questions that indicate an intention to expand Nuclear power, re-open Yucca Mountain, and privatize research. There is a question that indicates that the incoming Trump administration intends to cut the DOE budget by 10%

    Finally, the last several questions ask about the DOE’s labs, focusing on the personnel. Who are they, what are they up to, what projects are they working on? That sort of thing.

    The entire questionnaire is here: [trump-transition-questionaire-to-dept-energy] as a PDF file. Please look through it and let me know what you think.

    There appear to be two different questionnaires. The other one is here: [document_gw_06]. I’ve not done a point by point comparison but they seem to be similar in overall content and meaning.

    Here is the link to the Trump DOE Transition Team mentioned above: [pyle-what-to-expect-from-the-trump-administration_letter]

    An Evangelical’s Guide to Climate Change

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    My friend Paul Douglas calls himself an albino unicorn. He is a Republican (one of my few Republican friends!) and an evangelical Christian (one of my few evangelical Christian friends!) who is extremely well informed about climate change, and who acts on a day to day basis as a climate warrior, informing people of the realities of climate change at several levels.

    I tend to think of Paul as a tire, because he is where the rubber meets the road. His job is informing corporations and such about the risks they are facing right now, today, tomorrow, next week with respect to weather. Paul has been doing some sort of meteorology or another for quite a while now, having been a TV presenter meteorologist in Chicago and the Twin Cities, having consulted in Hollywood (Jurassic Park and Twister), and having run various metrology companies like the one he runs now. He also gives talks around the Twin Cities and elsewhere about climate change, writes a regular column for the Star Tribune, and has consulted for or testified for various government agencies on long term climate change risks.

    Paul and I have somewhat similar histories. Born only a few weeks apart, raised in the non-urban part of a semi-industrialized semi-rural eastern state (New York for me, Pennsylvania for him), and having had formative weather experiences early in life. In Paul’s case, it was a major hurricane that eventually lumbered into the mountainous areas of Central Pennsylvania, causing killer floods and other mayhem. Paul, a teenager at the time, and a scout, developed an early warning system for river floods, and probably earning one hella merit badge.

    Paul is an excellent explainer of climate and weather, as you can learn from this interview. And, he does not restrict his communication efforts to places like churches or whatever venues are frequented by Evangelical Christians such as lutefisk breakfasts, snake handling session, etc. In fact, the aforementioned interview is on Atheist Talk Radio.

    And now, Paul has co-authored a book on climate change written specifically for Evangelicals: Caring for Creation: The Evangelical’s Guide to Climate Change and a Healthy Environment.

    The book’s structure swaps back and forth between science (the parts written by Paul Douglas) and scripture (the parts written by co-author Mitch Hescox). I don’t know Mitch, but from the blurb I learn: “Mitch Hescox leads the Evangelical Environmental Network (EEN), the largest evangelical group dedicated to creation care (www.creationcare.org). He has testified before Congress, spoken at the White House, and is quoted frequently in national press. Prior to EEN, he pastored a church for 18 years and worked in the coal industry. Mitch and his wife live in Pennsylvania.”

    Paul Douglas (www.pauldouglasweather.com) is a respected meteorologist with 35 years of TV and radio experience. A successful entrepreneur, he speaks to community groups and corporations about severe weather and climate trends, and appears regularly on national media outlets. Paul and his wife live in Minnesota.
    Paul Douglas (www.pauldouglasweather.com) is a respected meteorologist with 35 years of TV and radio experience. A successful entrepreneur, he speaks to community groups and corporations about severe weather and climate trends, and appears regularly on national media outlets. Paul and his wife live in Minnesota.
    Now, you might think that the chances of an Evangelical Christian reading my blog is about zero. This is not true. Many Christians, ranging from Evangelical to less-than-angelical read this blog, they just don’t say much in the comments section. Except those who do, mainly those denying the science of climate change. Well, this book is for all of you, especially the Evangelical deniers, because here, the case is made on your terms and in your language, in a very convincing way, and, including the science. It turns out that, according to the Bible, you are wrong on the Internet.

    Let’s say that you are a fairly active atheist who likes to annoy your Christian relatives at holidays. If that is the case, then this book is for you!! This is the book to give to your Uncle Bob.

    I can’t attest to the scriptural parts of this book. This is not because I’m unfamiliar with Scripture or have nothing to say about it. Both assumptions would be highly erroneous. But, in fact, I did not explore those parts of this book in much detail, just a little. But I am very familiar with the science in this book, I’ve delved deeply into it, and I can tell you that Paul has it right, and it is very current.

    From the publisher:

    screen-shot-2016-10-23-at-10-13-57-am

    Forget the confusing doom and gloom talk about climate change. You want to know the truth about what’s happening, how it could affect your family and the world, and more important, if there are realistic ways to do something about it–even better, solutions that reflect your beliefs.

    Connecting the dots between science and faith, pastor and influential evangelical leader Mitch Hescox and veteran meteorologist Paul Douglas show how Christians can take the lead in caring for God’s creation. Tackling both personal and global issues, these trusted authors share ways to protect our families, as well as which action steps will help us wisely steward the resources God has given us.

    This hopeful book offers a much-needed conservative, evangelical approach to a better way forward–one that improves our health, cleans up our communities, and leaves our kids a better world.

    What I find exceptional about Paul Douglas’s conversation about weather, aside from the fact that he well commands an audience of those who might otherwise be naysayers, is that he brings decades of direct observation of actual climate change into the discussion. He has been a) reporting the weather during the periods of maximal change so far, b) while paying close attention and c) never had his mind shut down to ignore climate change, as has happened in the past to so many meteorologists.

    The book is loaded with helpful greyscale graphics, and notes/references. Paul is at @pdouglasweather

    The book launches on November 15th (see you at the launch?) but is available now.

    Royal Society Puts Matt Ridley And His Friends On Notice

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    The Royal Society is the world’s oldest extant scientific society. And, it is a place where scientific controversy has a home. Both Huxley and Wilberforce were members back in the 19th century, when young Darwin’s ideas were first being knocked around.

    More recently, just a few weeks ago, the Royal Society accidentally agreed to host a talk by coal baron and formerly respected science writer Matt Ridley. Matt Ridley has been a great disappointment to us scientists and science teachers. Many of us used his book as a supplementary reading in our evolution courses, for example (Ridley was a respected science writer back in the day). But more recently he has become a global warming science denier, and the suggestion has been made that this is because his personal wealth is tied up in coal mining.

    Here are some resources to get up to speed on the Ridley controversy:

    <li><a href="http://scienceblogs.com/gregladen/2015/11/30/matt-ridley-and-benny-peisers-misleading-guide-to-the-climate-debate/"><strong><em>Matt Ridley and Benny Peiser’s Misleading Guide to the Climate Debate</em></strong></a></li>

<li><a href="http://scienceblogs.com/gregladen/2015/01/19/testing-matt-ridleys-hypotheses-about-global-warming/"><strong><em>Testing Matt Ridley’s Hypotheses About Global Warming</em></strong></a></li>

<li><a href="http://scienceblogs.com/gregladen/2014/12/10/mat-ridley-anti-science-writer-climate-science-denialist/"><strong><em>Matt Ridley, Anti-Science Writer, Climate Science Denialist</em></strong></a></li>

    Anyway, the Royal Society accidentally allowed the Global Warming Policy Foundation, which is an anti-science organization pretending to be a, well, a policy foundation of some sort, to book a talk by Matt Ripley. This was clearly an attempt to legitimize climate change denial. The real science community got wind of this, and objected. From Graham Readfearn:

    The Royal Society is coming under internal pressure to cancel a booking on its premises made by climate science “sceptic” group the Global Warming Policy Foundation, DeSmogUK can reveal.

    Several fellows and associates of the society – the world’s oldest scientific academy, founded in 1660 – are angry over an agreement to hire its premises to the GWPF for its 17 October annual lecture, to be delivered by Lord Matt Ridley.

    DeSmogUK also understands some scientists intend to raise the issue at a meeting of the Royal Society’s governing council on 6 October, with a request to cancel the GWPF booking.

    Well, they did. And the Royal Society thought about it and decided to allow the talk to continue.

    And, we can get mad about that if we want, but I’m not. The Royal Society clearly made a mistake in making the booking, but this sort of mistake is one of the costs of at least trying to live in a world where the conversation over science can generally be an honest one, and nefarious shenanigans such as this booking by a fake think tank to have a fake expert talk about fake science circumvents that honest conversation.

    I’m reminded of the time when Harvard’s Kennedy School of government accidentally booked Famous African Dictator Mobutu Sese Seku Kuku Kibombe of Zaire to give a talk as part of a series of world leaders talking about government. Not long after word of that got out, there was a move towards uninviting, but that is actually very difficult for an institution to do. That talk went forward, with protests, and Americans became suddenly much more aware of Mobutu and what he had been up to in the country formerly and currently known as the Congo. This actually helped with ongoing efforts to get the US Congress to cut ties with Mobutu (he had been a loyal mercenary extraordinary and plenipotentiary on behalf of the US for years, fighting the Libyans and other African bad guys …) but I digress. The point is, Mobutu’s talk at the Kennedy school ended up being an important nail driven into his eventual coffin.

    DesmogUK’s Kyla Mandel now reports that the Royal Society will allow the talk to go forward, but promises that if the speaker throws science under the bus, there will be people watching and reporting.

    When the Royal Society met to discuss the matter, there was general agreement that climate change was real, that Ridley was not a friend to the science, that they regretted giving the talk, etc. But they also felt that cancelling the talk would give more cachet to the cancelled speakers and his fake think tank than they deserved. Rather, they thought, let the talk go ahead and “If the GWPF uses this opportunity to misrepresent the scientific evidence it would undermine the legitimacy of its views on policy responses to climate change.”

    Sounds very Minnesotan. Passive aggressive counter attack, that.

    Mandel’s report has more details, go read it here.

    I look forward to the debunking of the talk by Matt Ridley, the 5th Viscount of Coal. Or whatever he calls himself. His career as a respected science writer is pretty much over, but there’s always room for one more nail.

    Mike Mann, The #HockeyStickGraph, #Matthew, #AGW

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    It turns out that there is an untold story behind the “discovery” of the famous Hockey Stick graph by Mike Mann and his colleagues. It is an excellent example of how science works, worthy of repeating, say, in a science classroom.

    Anthropogenic Climate Change is very serious business. And, therefore, there has been far too little humor applied to communicating about this problem. Mike Mann and his co-author Tom Toles have started to backfill that gaping hole in the collective effort to bring the most important existential issue of our time to everyone’s attention.

    Hurricane Matthew wasn’t just a storm enhanced by, or affected by, or influenced by, climate change. Matthew is the new poster storm for climate change and catastrophe, not because it Destroyed America (it didn’t, America got lucky, though Haiti did not) but because of several unique characteristics of that storm.

    So, I did an interview with Mike Mann, even as Matthew was just about to pounce on Florida, in which we discuss various aspects of Atlantic hurricanes, and Matthew in particular.

    We also discuss long term variation in the climate record, those squiggles in the surface warming trend on top of which regular warming is imposed.

    We discuss Mike’s journey to the Hockey Stick, which I’m pretty sure is a story that has not been covered on a blog post or podcast or anything like that.

    And, we discuss Mann and Tole’s new book, “The Madhouse Effect.”

    Click here to get more info and hear the podcast, the latest edition of Ikonokast, with Mike Haubrich and Yours Truly.

    If that is of interest to you, note also that we have an earlier interview with Peter Gleick on the California Drought and the crisis in Syria, and other matters, all related to Climate Change.

    And a recent interview with Emily Cassidy on the food supply, which is a fairly closely related topic.

    The Big Winner in the Second POTUS Debate: Climate Change!

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    Climate change is a settled issue. It is now widely and recognized as real, and as one of the top, if not THE top, existential problems the world faces today. Americans want climate change stopped, and they want the next version of the US Government, the one that starts in January, 2017, to work hard to reduce the human release of greenhouse gas as rapidly as possible.

    How do we know this?

    Because no one mentioned a thing about it during last night’s debate!

    A few months ago, I would have expected presidential debates to have included climate change pretty much in every iteration. It doesn’t matter if the overarching subject matter is national security, the economy, or any other topic; climate change figures importantly in every aspect of American national policy. But, in the intervening time, we’ve had the Paris agreement, we’ve had a general acknowledgement that climate change is real by a growing number of former skeptics, and recently, even Donald “It’s a Chinese Hoax” Trump told us that he never said it was a Chinese hoax.

    So, it’s over! No need to discuss the most important issue of our times, even after the floodwaters caused by a devastating global warming enhanced hurricane are still receding in the American southeast, and bodies are still being found in the rubble in Haiti. Apparently, everyone, including Anderson Cooper (who did a TV special on how important climate change is a few years go) and the others at the debate, are have boarded the cliamte change train and are ready to move forward!

    I’m so glad that people have finally come to their senses.

    For more on climate change at last night’s debate, see: #KenBone becomes famous — and not for asking a non-#climate question fcl