Climate Letter #1184

A perspective on the recent experience of frequent, heavy rainfall in the US:  “It’s a reminder that heavy rain, rather than rising seas, may be the earliest severe consequence of climate change. We’ve prepared for it in the worst way possible.”  It’s a bit too soon to draw conclusions, but if you add up the intensified trend all kinds of bad storms, including hurricanes, heavy rain, large hail, tornadoes, blizzards and so on, we seem to be moving into new, uncharted and wholly unpleasant climate territory.  That’s what James Hansen was warning about in his book, “Storms of My Grandchildren,” when he said they will keep getting much, much worse.  As this story points out, the flood problem is a kind of sideshow, having largely unrelated causes.

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How climate change is affecting the Arab world (The Economist).  There are already problems with excessive heat, drought and dust storms and they are growing.  According to a study in Nature, assuming there is no emissions abatement, “By 2100 “wet-bulb temperatures”—a measure of humidity and heat—could rise so high in the Gulf as to make it all but uninhabitable.”
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New research that is critical of how we eat, reported by The Guardian.  The assessment goes well beyond greenhouse gas emissions, enumerating various other impacts that exist:  “Agriculture is a sector that spans all the multitude of environmental problems…..Really it is animal products that are responsible for so much of this. Avoiding consumption of animal products delivers far better environmental benefits than trying to purchase sustainable meat and dairy.”  No one wants to hear these things, but there it is.
–Also, a different review of the same study ends with a statement about the conclusion that I find especially interesting:  “Ultimately, the study concludes, consumers will play the biggest role in making choices that reduce the environmental and climate impacts of food.”  That’s a way of saying that all kinds of government action, Paris agreements and the like have great difficulty in regulating dietary choices.  Would taxes work, if they could be passed?  Would all of the relevant industry groups sit idly by, and send all of their lobbyists home?  Beyond that, how many consumers are at this time ready to stand up and be counted?
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A development that could be of considerable help in overcoming food shortages.  The discovery is not easy to understand, and there is much more research to be done, but the potential goal is tantalizing.  “If we can translate this discovery to food crops, we can equip farmers with resilient plants capable of producing more food despite increasing temperature stress.”  “More” means up to 50% for a variety of basic crops!
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One year since Trump announced his exit from the Paris Agreement.  Here is a review of how the world has responded.  Some pluses, but not enough to fill the gap.
Carl

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