Climate Letter #507

The rapid and startling decline of the world’s boreal forests, from Yale Environment 360. The full story shows many consequences that are very troubling.  Climate alone is not responsible for the decline, but “Climate zones are moving north ten times faster than forests can migrate.”

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How climate change is affecting forests in the Amazon basin.  Projected increases in drought conditions have a principal role.  “Rising temperatures will likely cause widespread drought throughout the Amazon basin, which could cause forests to degrade and release their carbon stores.”
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New concerns about the stability of ice shelves that surround Antarctica.  From a recent study, “The results suggest that ice shelf surface melting increases exponentially with air temperature.”  Melting also occurs on the underside when ocean waters warm up.  The shelves, while intact, retard the seaward movement of glaciers, which gives them great importance.
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How sea level rise will impact urban centers in the US.  This study does not see any hope for the survival of either Miami or New Orleans.  Many other cities, including New York, are at high risk but can still be saved if appropriate action is taken.  A global edition of the study will be issued in a month.
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BP chief economist largely agrees with climate activists.  Speaking to industry economists, he acknowledges the warming effect of burning CO2 and agrees that a large portion of fossil fuel reserves will need to be left in the ground.  That will tend to hold down future price increases.  Nothing said here about why BP and others continue to spend vast sums on exploration activity.
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A German company has found ways to sharply reduce the cost of manufacturing solar wafers made from silicon.  Mass production will begin in 2017 in a new factory..  Nothing is said here about licensing the method to other manufacturers, but it would seem like a logical way to capitalize on such an important discovery if it has patent protection.
Carl

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