Climate Letter #938

An in-depth analysis of global emissions and energy demand.  This splendid work from Carbon Brief has some of the clearest charts you’ve ever seen, connecting past and present changes and where the most important future changes are located.

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A reminder from the president of the Marshall Islands:  “We have nowhere to run and nowhere to hide.”  Many of their neighbors have the same story, one that will be heard with great regularity from now on and cannot be ignored.
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How our lives are affected by the rising temperature trend.  This post has some good information, with the assistance of a very neat gadget, about the frequency of record highs and lows over all localities.  It also has a reminder about the fact that hot weather causes certain elements of air pollution to worsen.  “As temperatures rise, heat-related deaths are projected to grow exponentially.”
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From The Atlantic magazine, the story of diesel-powered cars and how they have fallen from grace.  These engines have some advantages that once made them popular in many places while obscuring an awareness of their faults.  Their disappearance is now inevitable.
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Real data shows how warmer temperatures affects river flow.  Measurements taken on the Colorado River during two different extended periods of drought demonstrate significant differences due to temperature.  The amount of decline, about 4% per each degree of warming (Fahrenheit), could be accounted for by increased evaporation.  Future drought periods in the Colorado basin could be truly harrowing for meeting water supply needs.
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An interesting paper about future energy trajectories.  A key assumption is that each of the fossil fuels is fast approaching its own limit of practical economic usage, leaving the field open to cheaper alternatives. but the alternatives have a painfully long way to go in order to catch up.  That presents an unavoidable complication in the outlook for economic growth, which may need to take a breather.  If the assumptions are correct, and they are certainly plausible, the conclusions are hard to dismiss.
Carl

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