Climate Letter #1213

Explainer:  Drought creates a perfect storm for wildfires in U.S. West (Reuters).  The current numbers and conditions are very bad and the future outlook is even worse.  “An expected 1.8 Fahrenheit (1C) temperature rise by mid-century is expected to double or triple the annual acreage burned from a current 7 million acres average, according to a study by the U.S. Forest Service and Department of Agriculture.”

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Extreme weather is on the rise and becoming even more deadly (Deutsch-Welle).  This post has broad coverage of global trends, with special mention of the unusual flooding disaster in Japan and heat wave deaths in Canada.  The chart shows a tremendous strengthening in extreme weather events since the early 1970s, which was also the beginning date for the well-sustained upward march in global temperatures.

–Plus, a BBC report from Japan, with a short video:
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Mongabay has an in-depth review of recent studies concerning the outlook for deforestation in what remains of the world’s most pristine tropical woodlands.  Mining, oil and gas and logging companies hold legal concessions on 19% of the total area, but their direct damage is not the biggest part of the story due to all sorts of associated activities that are even more significant.  “And while not every concessions will make it to the extraction stage, during which extractive activities tend to be concentrated in a small proportion of the total concession block, the knock-on effects of the access infrastructure tend to be much more extensive.”
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An interesting revelation about recent polling data.  The part about global warming has already been reported.  This post adds information about trends in party affiliation, starting in 2004 and updated monthly.  The chart was produced by Brookings, using data from Gallup.  What is so interesting is the steady climb of Independents as the control of both parties moved toward their respective and largely ideological outer wings, causing each to lose ground.  The Republicans under Trump have lately moved much farther from the center, which should make it obvious to Democrats that doing exactly the opposite might be a winning strategy.
–This is the site that updates the Gallup data each month:
–Plus, the real reason Scott Pruitt is gone.  In his zeal to help the oil and gas companies he forgot all about the farmers that profit from ethanol, or their many representatives.
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A recent study found that the East Antarctic ice sheet remained largely intact for the last 8 million years.  During this long period, which includes the late stages of the Miocene era, the CO2 level was largely contained below the 450 ppm level we are now approaching and hoping to set as an upside limit.  “These findings add to the growing body of evidence that curbing levels of atmospheric carbon dioxide can still ensure the stability of significant amounts of ice in Antarctica and around the globe.”  The savings, equal to more than 110 feet of potential sea level rise, account for more than half of the possible total if everything melted.  This is a piece of good news, sort of.
Carl

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