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	Comments on: New Research On The Rising Sea	</title>
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	<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/</link>
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		<title>
		By: Chaamjamal		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468191</link>

		<dc:creator><![CDATA[Chaamjamal]]></dc:creator>
		<pubDate>Thu, 07 Sep 2017 02:20:21 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468191</guid>

					<description><![CDATA[All this talk without the evidence that the rate of sea level rise is related to fossil fuel emissions or that it can me moderated by reducing emissions.]]></description>
			<content:encoded><![CDATA[<p>All this talk without the evidence that the rate of sea level rise is related to fossil fuel emissions or that it can me moderated by reducing emissions.</p>
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		<title>
		By: Climate change and transport: effects of sea-level rise on an English railway line		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468190</link>

		<dc:creator><![CDATA[Climate change and transport: effects of sea-level rise on an English railway line]]></dc:creator>
		<pubDate>Tue, 29 Mar 2016 07:49:17 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468190</guid>

					<description><![CDATA[[&#8230;] New Research On The Rising Sea [&#8230;]]]></description>
			<content:encoded><![CDATA[<p>[&#8230;] New Research On The Rising Sea [&#8230;]</p>
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		<title>
		By: Greg Laden		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468189</link>

		<dc:creator><![CDATA[Greg Laden]]></dc:creator>
		<pubDate>Tue, 01 Mar 2016 13:46:43 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468189</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468188&quot;&gt;Lb&lt;/a&gt;.

Lb

I discuss this in the post.  It is not the case that no one knows how this works. This, as discussed in the post, has been the subject of research for about 60 years.]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468188">Lb</a>.</p>
<p>Lb</p>
<p>I discuss this in the post.  It is not the case that no one knows how this works. This, as discussed in the post, has been the subject of research for about 60 years.</p>
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		<title>
		By: Lb		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468188</link>

		<dc:creator><![CDATA[Lb]]></dc:creator>
		<pubDate>Tue, 01 Mar 2016 05:57:47 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468188</guid>

					<description><![CDATA[At the peak of the last Ice Age the weight of ice on N America
pushed the continent down on its northern edge. It was mantle deformation as much as ice formation that resulted in the exposure of the Bering bridge. This illustrates the uncertainty that complicates calculations. When the ice is removed from the continents the weight loss must be balanced by an equivalent weight gain in 
The global ocean. Mantle rebound here results in mantle depression there. As Antarctica and Greenland  rebound the global oceanic crust relaxes. The basins get deeper. The problem arises because no one knows if rebound and relaxation occur at the same rate though it seems unlikely.]]></description>
			<content:encoded><![CDATA[<p>At the peak of the last Ice Age the weight of ice on N America<br />
pushed the continent down on its northern edge. It was mantle deformation as much as ice formation that resulted in the exposure of the Bering bridge. This illustrates the uncertainty that complicates calculations. When the ice is removed from the continents the weight loss must be balanced by an equivalent weight gain in<br />
The global ocean. Mantle rebound here results in mantle depression there. As Antarctica and Greenland  rebound the global oceanic crust relaxes. The basins get deeper. The problem arises because no one knows if rebound and relaxation occur at the same rate though it seems unlikely.</p>
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		<title>
		By: Desertphile		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468187</link>

		<dc:creator><![CDATA[Desertphile]]></dc:creator>
		<pubDate>Thu, 25 Feb 2016 03:56:31 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468187</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468183&quot;&gt;SteveP&lt;/a&gt;.

SteveP: &lt;b&gt;&lt;i&gt;&quot;It would be fun to let people test their abilities in air which has been artificially adjusted back to a more normal 285 ppm.&quot;&lt;/i&gt;&lt;/b&gt;

There are medical ethics issues involved, even when using prisoners and the inferior races as test subjects (damn it).

Based on non human tests, applied to humans, I will hazard a guess at the results:

At around 800+ ppmv humans can expect to see decreased cerebral blood flow and an increased blood acidity, with concomitant impairment of cognitive abilities. At 5,000+ ppmv we can expect to see no humans on the planet. This is a damn shame, because think of how well cannabis will be growing! We need to end marijuana prohibition ASAP, since we are running out of time.

P.N. Bierwirth (Australian National University) is currently massaging a paper on the subject. I have not read it yet, because I have already had all the bad news I can take for the year.... and it&#039;s still just February.]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468183">SteveP</a>.</p>
<p>SteveP: <b><i>&#8220;It would be fun to let people test their abilities in air which has been artificially adjusted back to a more normal 285 ppm.&#8221;</i></b></p>
<p>There are medical ethics issues involved, even when using prisoners and the inferior races as test subjects (damn it).</p>
<p>Based on non human tests, applied to humans, I will hazard a guess at the results:</p>
<p>At around 800+ ppmv humans can expect to see decreased cerebral blood flow and an increased blood acidity, with concomitant impairment of cognitive abilities. At 5,000+ ppmv we can expect to see no humans on the planet. This is a damn shame, because think of how well cannabis will be growing! We need to end marijuana prohibition ASAP, since we are running out of time.</p>
<p>P.N. Bierwirth (Australian National University) is currently massaging a paper on the subject. I have not read it yet, because I have already had all the bad news I can take for the year&#8230;. and it&#8217;s still just February.</p>
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		<title>
		By: Craig Thomas		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468186</link>

		<dc:creator><![CDATA[Craig Thomas]]></dc:creator>
		<pubDate>Thu, 25 Feb 2016 00:31:27 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468186</guid>

					<description><![CDATA[SteveP - humans already live in places where CO2 concentrations fluctuate well above the average ambient level in the clean places like Mona Laua or Cape Grim where measurements are made.]]></description>
			<content:encoded><![CDATA[<p>SteveP &#8211; humans already live in places where CO2 concentrations fluctuate well above the average ambient level in the clean places like Mona Laua or Cape Grim where measurements are made.</p>
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		<title>
		By: BBD		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468185</link>

		<dc:creator><![CDATA[BBD]]></dc:creator>
		<pubDate>Wed, 24 Feb 2016 08:30:05 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468185</guid>

					<description><![CDATA[Yet another confirmation that:

- There was no &#039;MWP&#039; as warm as or warmer than the present

- Modern SLR is unprecedented in at least 2ka

- The SLR boulder is now rolling down the mountain

- Millennial SLR is almost certainly locked in

- Ice sheet dynamics are likely / very likely to hold extremely unpleasant surprises in store for increasingly beleaguered future generations

- &#039;Sceptics&#039; are utterly resistant to constructive dialogue and actually learning about the science]]></description>
			<content:encoded><![CDATA[<p>Yet another confirmation that:</p>
<p>&#8211; There was no &#8216;MWP&#8217; as warm as or warmer than the present</p>
<p>&#8211; Modern SLR is unprecedented in at least 2ka</p>
<p>&#8211; The SLR boulder is now rolling down the mountain</p>
<p>&#8211; Millennial SLR is almost certainly locked in</p>
<p>&#8211; Ice sheet dynamics are likely / very likely to hold extremely unpleasant surprises in store for increasingly beleaguered future generations</p>
<p>&#8211; &#8216;Sceptics&#8217; are utterly resistant to constructive dialogue and actually learning about the science</p>
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		<title>
		By: Kevin O'Neill		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468184</link>

		<dc:creator><![CDATA[Kevin O'Neill]]></dc:creator>
		<pubDate>Wed, 24 Feb 2016 04:56:26 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468184</guid>

					<description><![CDATA[Albert Einstein: &quot;&#039;Two things are infinite: the universe and human stupidity; and I&#039;m not sure about the universe.&quot;

Whoocoodanode that ol&#039; Albert knew RickA?]]></description>
			<content:encoded><![CDATA[<p>Albert Einstein: &#8220;&#8216;Two things are infinite: the universe and human stupidity; and I&#8217;m not sure about the universe.&#8221;</p>
<p>Whoocoodanode that ol&#8217; Albert knew RickA?</p>
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		<title>
		By: SteveP		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468183</link>

		<dc:creator><![CDATA[SteveP]]></dc:creator>
		<pubDate>Wed, 24 Feb 2016 02:37:10 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468183</guid>

					<description><![CDATA[Desertphile #15 Let&#039;s see,if I&#039;m not mistaken, the level of carbon dioxide in the atmosphere has been pretty close to around 285 ppm in the entire time when humans evolved their current physiology.  And now, we are pushing over 400 ppm in even &quot;pristine&quot; air.  Yes, I know that blood is well buffered, but I have a hard time imagining that raising the ambient CO2 level by 40% won&#039;t have some measurable effects on blood pH and blood gases and consequently on every freaking biochemical  reaction in our body.  It would be fun to let people test their abilities in air which has been artificially adjusted back to a more normal 285 ppm. I wonder how long it will be before some entrepreneur does just that; offer clean air for stressed out moderns to breath.   Oh wait. I think they already have been doing something like that in Japan for years; selling oxygen at kiosks. 

Anyway,maybe the  carbon dioxide induced  diminution of human cognition is already beginning.  Maybe it is time to stock up on lithium hydroxide air purifiers or something. Just joking of course... but maybe not...]]></description>
			<content:encoded><![CDATA[<p>Desertphile #15 Let&#8217;s see,if I&#8217;m not mistaken, the level of carbon dioxide in the atmosphere has been pretty close to around 285 ppm in the entire time when humans evolved their current physiology.  And now, we are pushing over 400 ppm in even &#8220;pristine&#8221; air.  Yes, I know that blood is well buffered, but I have a hard time imagining that raising the ambient CO2 level by 40% won&#8217;t have some measurable effects on blood pH and blood gases and consequently on every freaking biochemical  reaction in our body.  It would be fun to let people test their abilities in air which has been artificially adjusted back to a more normal 285 ppm. I wonder how long it will be before some entrepreneur does just that; offer clean air for stressed out moderns to breath.   Oh wait. I think they already have been doing something like that in Japan for years; selling oxygen at kiosks. </p>
<p>Anyway,maybe the  carbon dioxide induced  diminution of human cognition is already beginning.  Maybe it is time to stock up on lithium hydroxide air purifiers or something. Just joking of course&#8230; but maybe not&#8230;</p>
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		<title>
		By: Chris O'Neill		</title>
		<link>https://gregladen.com/blog/2016/02/23/sea-level-rise-past-present-and-future/#comment-468182</link>

		<dc:creator><![CDATA[Chris O'Neill]]></dc:creator>
		<pubDate>Wed, 24 Feb 2016 02:17:24 +0000</pubDate>
		<guid isPermaLink="false">http://scienceblogs.com/gregladen/?p=22182#comment-468182</guid>

					<description><![CDATA[&lt;blockquote&gt;I will very likely die before 2100.&lt;/blockquote&gt;

We are fortunate that history will end when RickA dies or in 2100, whichever is sooner.]]></description>
			<content:encoded><![CDATA[<blockquote><p>I will very likely die before 2100.</p></blockquote>
<p>We are fortunate that history will end when RickA dies or in 2100, whichever is sooner.</p>
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