All posts by Greg Laden

A New Book On Drought by NASA GISS’s Ben Cook

Drought: An Interdisciplinary Perspective by Benjamin (Ben) Cook is the book you’ve always needed handy when the dry side of climate or climate change comes up in conversation.

The relationship between rainfall, groundwater, evaporation and transpiration, vegetation, bodies of water, animal distribution, agriculture, humans, and atmospheric conditions (not to mention oceanic factors and topography) underlie many different realms of academia and policy. Almost nothing I’ve ever done in my anthropological research didn’t include the hydrologic cycle, climate, and related issues. The weather weirding we are currently watching across the globe, including the current heavy rains and tornadoes, are part of this, and the long lived California Drought, the one that ended just recently, is as well.

In Drought: An Interdisciplinary Perspective, Cook looks at the dry end of the spectrum of the hydrologic cycle, but in so doing, he really has to cover the basics of rain related climate. There is math, and there is complicated science, in this book, but all of the material presented here is accessible to anyone who wishes to learn. If you are interested in climate change or agriculture, or paleoclimate, or any of that, Cook’s book is an essential reference, filling a gap that exists in the available range of current public-facing serious science books.

Cook covers the hydrologic cycle and the relationship between the hydrologic cycle and climatology. He defines the sometimes confusing concepts and measurements known as “drought” in a non-confusing and detailed way. I’ve found that in many discussions of drought, self defined experts who also happen to be climate change deniers tend to talk past (or over or around) others, making it difficult for the average non-expert to avoid frustration. Cook will arm you with the knowledge to stand up to such shenanigans!

Cook covers drought in the Holocene, and the relationship between climate change and drought. He provides two key detailed case studies (the American dust bowl, and droughts in the Sahel of Africa). He covers landscape degradation and desertification, and irrigation.

Drought: An Interdisciplinary Perspective is fully authoritative and thorough, and, as noted, very readable and understandable. Reading this book might make you thirsty but it will also make you smarter.

Ben Cook is a research scientist at NASA-Goddard Institute for Space Studies and the Lamont-Doherty Earth Observatory of Columbia University, and he teaches at Columbia’s School of Professional Studies.

Biden, Sanders, Harris, Warren, Are All About The Same

How does this sound? In a two person race (among Democrats and LD’s),

Biden 43%
Sanders 41%

(statistical tie)

Biden 41%
Harris 38%

(statistical tie)

Sanders 42%
Harris 37%

(that may be statistically significant, but just barely)

Sanders 37%
Warren 40%

(statistical tie)

Conclusion: Among these front runners, they are all about the same, among Democrats, nationally. Note that recent polls showing Biden with a huge lead are all, as far as I know, among the First Four contests.

Source

I’m warning you, watch for those tornadoes!

Paul Douglas points out, as Item #1 in his thoughtful 6 Take-Aways From The Biggest Swarm of U.S. Tornadoes Since 2011, that “too many people still don’t know the difference between a Tornado Watch and a Tornado Warning. A Tornado Watch means “watch out”… Go about your normal activities but stay alert… A Tornado Warning … means that a tornado has been spotted … It means life-threatening weather is imminent… it’s time to take evasive action.”

I’ll note that the words “watch” and “warning” are, as words, not sufficiently hierarchializable (to coin a term) for this job, perhaps. I mean, yes, it makes sense — what Paul Douglas says makes sense — but there could be warning signs of a thing that never happens, and we all agree that if only the watch had been more alert, the Titanic would have veered to the left sooner, thus sailing forward into obscurity instead of infamy. Maybe we need new words.

Paul notes that a “tornado emergency” is also a term of art, and it means that there is a confirmed big tornado “on the ground and capable of significant damage and loss of life, … issued when a large tornado is on the ground and pushing into a more heavily-populated suburban or urban area.” Maybe extending the definition of Tornado Emergency to mean any imminent threat with greater than a certain likelihood? Or would that water it down?

Paul also points out several other aspects, both falsehoods and important truehoods, about tornadoes, so you should just click through and read, and absorb and remember, 6 Take-Aways From The Biggest Swarm of U.S. Tornadoes Since 2011

Do you remember the old Dick Van Dyke Show episode where they had a contest to come up with a new word for “butter?” Don’t remember that? Neither do I, really, but I’m pretty sure it happened. I can not remember what word they came up with. There is evidence that words like “climate change” and “global warming” don’t spark the brain as much as words like “climate chaos” and “climate disruption.” I think that evidence is weak, and at least one study looking at people’s brains, purporting to show this, seems to have some limitations. The idea here is that the words or phrases are less or more effective because of the way they sound. Maybe, and to a large extent words DO have different levels of effectiveness. But how much a word has ever been heard probably strongly influences its effectiveness as well. But that can be much more subtle and nuanced than people may realize. An oft heard word may numb the listeners and fail to cause a brain spark. But at the same time, an oft-heard phrase can insinuate itself into the truth-ish ether that we all swim around in, causing something to become more real whether it is real or not.

(See more about that topic here.)

Also, there is the “w” problem. Both “Watch” and “Warning” start with the same sound. At least they are not the same number of syllables, and at least they don’t rhyme.

Perhaps there should be three words in alphabetical order, at the beginning of the alphabet, allowing for us to speak of the “ABCs” of tornadoes.

Alert! — stay alert since tornadoes COULD form in your area today.
Buckle Down!! — There is a tornado or possible tornado in your area, assume for safety’s sake that you are in danger.
Crap!!!! — If you are listening to this warning you have not dug deep enough into your hole. DIG DEEPER!

Or something along those lines.

Ideas?

Koch-Tank Drains Out Climate Denial Group: Michaels, Maue, Gone

In 1974, libertarians Ed Crane, Murray Rothbard, and Charles Koch (of the Koch Industries conglomerate) founded the Charles Koch Foundation, a libertarian “think” tank. In 1976 the name was changed to the Cato Institute. The name “Cato” comes from the “Cato’s Letters, or Essays on Liberty Civil and Religious and Other Important Subjects” which were written by John Trenchard and Thomas Gordon in the early 18th century, under the psuedonym “Cato” who was, in turn, an enemy of Julias Caesar. (For a treatment of the role of Cato’s Letters in the American Revolution see The Ideological Origins of the American Revolution by historian Bernard Bailyn.)

Cato took up the issue of anthropogenic global warming in around 2003, and the institute had a strong influence on Bush Administration policy. The most current and widespread Republican plank, among those Republicans that can read, is that global warming is real and at least some of it is human caused, but it does not matter, no big deal, climate changes, get over it. This philosophy (perhaps abusing the word “philosophy” there) is essentially a Cato product.

But now, Scott Waldman at E&E News reports that Cato is closing its climate shop. The biggest effect this will have is the departure of Patrick Michaels, often a commenter on Trump News, and the keeper of the nefarious policy on climate change. Waldman reports Michaels as saying, “They informed me that they didn’t think their vision of a think tank was in the science business, and so I said, ‘OK, bye.’ There had been some controversy going around the building for some time, so things got to a situation where they didn’t work out.”

Also gone from Cato, but his departure not necessarily connected with this change, is Richard Lindzen. Extremely annoying twitter denizen and supposed meteorologist Ryan Maue is also out.

For all the currently available details, see “Cato closes its climate shop.

Michael Wolf on Trump Under Siege

Michael Wolf’s book, Fire and Fury: Inside the Trump White House, was the first widely distributed and read book about the Trump White House. It was good (despite some complaints about it). He has a new book that I’ve not read but thought you might want to know about.

Siege: Trump Under Fire

Michael Wolff, author of the bombshell bestseller Fire and Fury, once again takes us inside the Trump presidency to reveal a White House under siege.

With Fire and Fury, Michael Wolff defined the first phase of the Trump administration; now, in Siege, he has written an equally essential and explosive book about a presidency that is under fire from almost every side. A stunningly fresh narrative that begins just as Trump’s second year as president is getting underway and ends with the delivery of the Mueller report, Siege reveals an administration that is perpetually beleaguered by investigations and a president who is increasingly volatile, erratic, and exposed.

Unexpected Methane Surge

According to Climate Nexus,

An unexpected surge in global atmospheric methane is threatening to erase the anticipated gains of the Paris Climate Agreement. This past April NOAA posted preliminary data documenting an historic leap in the global level of atmospheric methane in 2018, underscoring a recent wave of science and data reporting that previously stable global methane levels have unexpectedly surged in recent years.

The scientific community recently responded to the surge into two high profile publications by calling for a reduction in methane emissions from the natural gas system…

It is not clear where this methane is coming from, but most bets are on wetlands that have shifted from being greenhouse gas sinks (or neutral) to being greenhouse gas emitters. Methane is a bad greenhouse gas while it lasts (decades) but eventually changes into CO2 and water. The CO2, of course, stays in the atmosphere for much much longer. So, this is really like CO2 release but with a giant kick in the gut right out of the gate.

See this for more.

Celestial Calculations: This Book Promises To Not Hurt You

To calculate the exact location of a star, planet, or satellite, read the appropriate chapter in this book, download the source code, data files, or binaries, as needed from the publisher, and off you go on a wild adventure that combines star gazing, mathematics, and coding.

I am especially attracted to science or technology books that contain something the reader can work with. A book about a programming language should walk the reader through developing a good example of useful code. A book about computational science should include templates for workflow in data analysis. It is rare, though, to find a book about a pure science (as opposed to technology) that does this. Celestial Calculations: A Gentle Introduction to Computational Astronomy (The MIT Press) by J. L. Lawrence is one of those pragmatic publications.

J.L. Lawrence comes from the world of technology. He is a CTO of a company that builds computer systems for satellite-launching customers including the government. So, one might imagine that he has an interest in pulling out the old slide rule and doing applied rocket science.

Consider the situation of a serious amateur astronomer. You can look at the stars and planets through a good set of binoculars, or an amateur telescope. After a while, you may want to upgrade to a telescope that can be linked to your laptop for positioning. Or you might build a star tracker to allow your camera to get a nice shot of a comet. And so on.

But eventually you may also want to get into the math of the heavens, combining that with some coding skills you can easily pick up, and figure out how to locate planets, find specific stars, track the moon’s behavior with great accuracy, and convert between all the values of time and space that happen when round objects of various sizes find themselves falling towards each other in great, seemingly infinite time, spirals. And so on.

Celestial Calculations is written for amateur astronomers who want to use accessible math combined with extensive ready to go code written manly in python, java, and visual basic.

The prose that discusses the math and astronomy is straightforward and accessible, and if you read the book just for that you will come away much better informed about the solar system and broader universe. If you do that, you will probably skip about 20% of the technical discussions and math (maybe a bit more). The math is very clear and you can work through the concepts in your head, more or less, to get the idea, and appreciate the dynamic relationships between things in space. The programming is all relegated (but with notes in the book) to a major on line archive that you can download and use on your own computer to make the calculations, and modify as you wish.

The software is developed with a Microsoft Windows user in mind. The software should run on any platform, but you may have to fiddle with paths and other environment issues if you are using a non-Windows machine.

First Named Atlantic Storm of 2019

Ninety-seven percent of North Atlantic cyclones form after June 1st and before November 30th. Note that the end of the Atlantic hurricane season used to be October 31st, but it was moved because the hurricane scientist got tired of cleaning out their locker six times a year instead of just one time. Over the many years of tracking storms, 89 named storms have happened outside the named season.

So it is not utterly odd that Tropical Storm Andrea is now swirling about in the Atlantic, southwest of Bermuda.

It is possible, but unlikely, that Andrea will turn into a hurricane. It is too early to be sure bla bla bla but all the available information about this storm strongly indicates that it will move up the middle of the Atlantic and eventually become a large wet spot somewhere in Europe. I’m putting my money on Ireland. (yes, I now, too early bla bla bla, but Ireland.)

For your information, the next named storm will be Barry. Then…

Chantal
Dorian
Erin
Fernand
Gabrielle
Humberto
Imelda
Jerry
Karen
Lorenzo
Melissa
Nestor
Olga
Pablo
Rebekah
Sebastien
Tanya
Van
Wendy

New Prothero: Twenty Five Dino Discoveries

There is a new book by Don Prothero, and it is a new book in the microgenre of “25 things.”

The Story of the Dinosaurs in 25 Discoveries: Amazing Fossils and the People Who Found Them by Don Prothero is available now for pre-order, and is expected to hit the shelves in mid July. It will provide excellent summer reading!

You know of Prothero because of his many books including the current classic (now in its second edition) Evolution: What the Fossils Say and Why It Matters. The “25” genera includes The Story of the Earth in 25 Rocks: Tales of Important Geological Puzzles and the People Who Solved Them, and The Story of Life in 25 Fossils: Tales of Intrepid Fossil Hunters and the Wonders of Evolution.

This book has a chapter devoted to each discovery. The nature of the discovery varies, and the definition of discovery is, necessarily and helpfully, very wide ranging. In many cases, the discovery, recovery, eventual reporting or publication, and integration of a dinosaur species is a long and drawn out process involving multiple field trips, many different characters, and a lot of action. For example, the “discovery” of spinosaurus (from Egypt) comes to us as a story involving two world wars, several expeditions, great human tragedy, and some cool dinosaur bones. Other discoveries are more about how we think about dinosaurs. This is especially true of the first few chapters, which serve to illustrate how clueless early researchers were about certain things, while being pretty smart about other things.

Chapter 6, on Eoraptor, focuses not on a specific discovery, but rather, on the question of what a dinosaur actually is, how taxonomy has changed, and on attempts to identify and define the basal dinosaur (which is not Eoraptor, but it kinda is). There are other similar orienting pauses elsewhere in the book as well.

Although the chapters vary a great deal in the range of time, space, or fossil material covered, they follow a general pattern of putting together in one place most of the pertinent facts about a particular episode in the history of dinosaur research, and the pertinent facts about a particular part of the overall dinosaur bestiary. All in all, there is a good bit of history, history of the science, anatomy, evolutionary biology, scientific drama, greatness and tragedy of the act of discovory (or loss), and many many bones.

It is important for you to know that Prothero brings the reader up to date on many, probably most, of the current dinosaur controversies and conundra. The Story of the Dinosaurs in 25 Discoveries: Amazing Fossils and the People Who Found Them is divided into four sections. The first is about early finds and early thinking, from the dark ages of dinosaur research. The second focuses on the long-necked giants, the third on theropods, and the fourth on the ornithischians (duck beaked, horned, and spiky armored dinosaurs). I’ve put a current draft of the TOC at the bottom of the post to give you an idea of the detail of coverage.

I highly recommend this book.

Also by Prothero: When Humans Nearly Vanished: The Catastrophic Explosion of the Toba Volcano, Reality Check: How Science Deniers Threaten Our Future, UFOs, Chemtrails, and Aliens: What Science Says, The Princeton Field Guide to Prehistoric Mammals (Princeton Field Guides), California’s Amazing Geology, and coming out in the future: Fantastic Fossils: A Guide to Finding and Identifying Prehistoric Life, and a bunch of other books.

TOC:
Part I. In the Beginning
1. Megalosaurus: The “Great Lizard,” the “Scrotum Humanum”, and the First Named Dinosaur
2. Iguanodon: Gideon Mantell, Louis Dollo, and the First Dinosaur Fauna
3. Cetiosaurus: The “Whale Lizard,” Richard Owen, and the First Known Sauropod
4. Hadrosaurus: Joseph Leidy and the First American Dinosaur
5. Eoraptor: The First Dinosaurs
Part II. The Long-Necked Giants
6. Plateosaurus: Ancestors of the Giants
7. Apatosaurus and Brontosaurus: Marsh, Cope, and the Bone Wars
8. Diplodocus: The Real “Jurassic Park” and Carnegie’s Gift
9. Giraffatitan: The Tallest of the Tall, and the Tendaguru
10. Patagotitan: Who’s the Biggest of Them All?
Part III. Red in Tooth and Claw: The Theropods
11. Coelophysis: The Little Dinosaur of Ghost Ranch
12. Cryolophosaurus: Denizen of the Polar Darkness
13. Spinosaurus: Lost Giants of Egypt
14. Tyrannosaurus: King of the Tyrant Reptiles
15. Giganotosaurus: Biggest Predator of All?
16. Deinocheirus: “Terrible Hands” Lead to Big Surprises
17. Velociraptor: “Terrible Claws” and the Dinosaur Renaissance
18. Sinosauropteryx: Feathered Dinosaurs and the Origin of Birds
Part IV. Horns and Spikes and Armor and Duck Beaks: The Ornithischians
19. Heterodontosaurus: The Origin of Ornithischians
20. Stegosaurus: The “Roofed Lizard” and the Thagomizer
21. Ankylosaurus: Armored Dinosaurs and “Mr. Bones”
22. Corythosaurus: Duckbills with Headgear
23. Stegoceras: The “Unicorn Dinosaur” and the Boneheads
24. Protoceratops: The Griffin Legend and the Origin of Horned Dinosaurs
25. Triceratops: The “Dinosaurian Bison” and the Last of the Dinosaurs