The latest from David Spratt: “When are we going to stop pretending that +2°C is safe for the Great Barrier Reef, when +1°C already bleaches 93% of it?,” asked Prof. Hughes. David Spratt, an Australian, has been a serious student of climate change for decades. He has quite a knack for putting the reality of it, along with what is being done about it, into just the right words, catching the right perspective. Read through his new message, including the part about “coral emergency,” and maybe spend a little extra time on his older writings. Or, since they never seem to go out of date, I may just add them one by one to future Climate Letters.
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What Stephen Hawking says about certain subjects, with points missed. He doesn’t like Trump, which is apparently the big news, and also worries about climate change, which gets less press. This post, which noticed all that, missed an even bigger point: Hawking is worried about “runaway” climate change, or the Venus syndrome, that James Hansen used to talk about but then sort of apologized and stopped doing so. There are ways to completely lose control over the climate, of which exact parameters are unknown, and Hawking is quietly suggesting it is best not to flirt with that danger.
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What the new Greenland melt season looks like. Melting has been erratic, with several extreme pulses, much like it was starting off the record year of 2012. The video is about the historical perspective and details of the process, plus some thoughts about the future.
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Why Antarctica’s sea ice keeps expanding. Climate conditions in the south polar region are much unlike those in the north, where sea ice is in a rapidly retreating trend. New findings provide a reasonable explanation for the difference, largely due to vast differences in land mass positioning, patterns of wind behavior and degrees of precipitation. Climate models need to be adjusted.
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Nuclear energy may be ready for a comeback. Scientists have been working on revolutionary improvements that could lower costs and eliminate the threat of meltdowns or the release of radioactive gases. China is a serious participant in this effort.
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Radical improvements are coming in lithium-ion batteries. Based on work done at Berkeley Lab and MIT, “It has been experimentally demonstrated many times that a lithium-excess cathode material can deliver higher energy density, about 50 percent higher than the current cathode materials in commercial lithium batteries.”
Carl