Climate Letter #827

The village of Newtok, Alaska is seeking disaster relief because of climate change. There are all kinds of complex issues and implications involved in this situation.  It will serve as a test case for people who have a strong claim to being innocent victims of harm done by the actions of other people.  (A carbon tax could be considered as a source of funding for cases like this, more of which are sure to be coming.)

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A relatively simple way of graphically communicating the future risks of climate change.  Everybody should have some idea of just what those risks are, and how they will kick in with each degree of global warming.  This approach looks helpful, but still requires some time and effort for a clear picture to emerge.  It quickly gets complicated by the fact that risks are so unevenly distributed geographically.
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The continuing development of geothermal energy should not be overlooked.  The procedure known as enhanced geothermal, gradually being perfected, is called “the elephant in the room” because the potential source base already known about is so large.  Many countries, notably including Japan, are showing strong interest.
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The potential for revival of nuclear power is much less favorable.  There is no lack of effort in many places, but cost overruns and various other problems are discouraging.
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Some seldom noticed information about how the Earth is warming.  The underlying data is provided on the four charts in this post.  The first two show that since 1970 the air temperature over land areas has been rising considerably faster than that of air over the globe as a whole, by at least 0.2C.  The decline in sea ice, shown in the following charts, provides a good part of the reason for this.  That is because air temperatures over sea ice, which is accounted for as land, will generally run from 15 to 30 degrees colder than that over open water that is not far away.  Any conversion of sea ice to open water eliminates that differential, which can add up big as a credit to “land” when such a large area is involved.  It is well known that sea ice serves as a lid that prevents the normal release of heat from ocean water to the air above.

For further perspectives go to the Climate Reanalyzer site and study the way the ice-free Atlantic Ocean has invaded the Arctic region, and the temperature effects, using the various measurement tools that are provided.  That is where the greatest loss of sea ice is located.
Carl

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