Opinions from scientists about the new IPCC report, largely stressing the urgency related to the potential loss of food security (Phys.org). An example: “The stability of food supply is projected to decrease as the magnitude and frequency of extreme weather events that disrupt food chains increases…..In the worst-case scenario, food security problems change from moderate to high risk with just a few more tenths of a degree of warming from now. They go from high to “very high” risk with just another 1.8 degrees Fahrenheit (1 degree Celsius) of warming from now.” (The steady trend of warming since 1975 has been just a bit less than tw0-tenths of a degree C per decade.)
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A New York Times story about the report picked up some bits of information that others often missed. One particular item, as expressed directly by one of the lead authors: “A particular danger is that food crises could develop on several continents at once…..The potential risk of multi-breadbasket failure is increasing…..All of these things are happening at the same time.” That thought raises the possibility that vital relief programs which today are effectively serving tens of millions of persons at any one time could lose their resources for the duration and become inoperative.
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Positive action aimed at making the best use of Earth’s land can be boiled down into four guiding principles (VOX). One of the most encouraging things about this situation is that there are solutions to almost every problem which will simultaneously help to relieve other problems of a different kind.
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Solar panels are most efficient when placed on cropland (EurekAlert). Rather surprisingly, researchers have found the panels like conditions that are cool, breezy and dry. Existing croplands are ideal, and the presence of solar panels has also been shown by other studies to be good for crop yields. The new study found that if less than 1% of agricultural land were converted to solar panels it would be sufficient to fulfill global electric energy demand.
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Electric power generators in the US are steadily moving away from coal (S&P Global). “Power generators across the U.S. are not only sticking to plans to retire coal-fired power plants despite the pro-coal Trump administration, they are touting the cost savings of doing so while pushing a further transition away from the fuel.” Whatever doubts they had in the past have been overcome, purely as a matter of economics.
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Another sign that the switch to electric cars is also inevitable (Think Progress). That bit of good news comes from the world’s eighth largest bank. They think this means peak oil demand should be less than a decade away.
Carl