Climate Letter #1180

Latest information from the study of atmospheric rivers (NASA).  A direct link has been found between the extent of global warming and the frequency and severity of atmospheric river conditions.  The “rivers” are becoming longer and wider, carry far more water and exhibit much stronger winds, but are slightly reduced in number.

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NASA has also been studying changes in the distribution of freshwater storage over the surface of the Earth by satellite since 2002.  This post starts with a neat video of the rapidly shifting results.  “We see a distinctive pattern of the wet land areas of the world getting wetter—those are the high latitudes and the tropics—and the dry areas in between getting drier.”
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The weather phenomenon known as “blocking” can now be explained and predicted better than ever.  It has long been recognized as a principal feature of many of the most disastrous events.  Using a new model of how the jet stream works, “It turns out the jet stream has a capacity for ‘weather traffic,’ just as highway has traffic capacity, and when it is exceeded, blocking manifests as congestion.”  Existing theories of how traffic jams form are fairly simple and should be highly adaptable to weather forecasting.
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An update on the Rio Grande river valley (NY Times).  Mismanagement aside, the amount of water resources that drain into the river is in a diminishing trend as an effect of climate change.  This spring experienced serious drying that came earlier than usual.  This fine article is well-illustrated.
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How electric vehicles can provide much of the storage needed to run a grid with renewable energy.  The mathematics behind meeting the desired requirement for capacity works out surprisingly well when everyone is driving an electric car—in another 20-30 years or so.  Getting everything connected properly should not be an obstacle.  Some Australians are making plans for all this to happen.
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Why the most bullish forecasts for EV growth just might come true.  Joe Romm shows how all the key developments in that direction are speeding up, with big oil companies as well as traditional auto makers taking more and more interest in participating.  Again, the emphasis is on current and future advances in battery performance.
Carl

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