The major UN report on loss of biodiversity—over 1500 pages long—has been released. It is not yet available for reading, and summarizing is not easy because there is so much material, a virtual encyclopedia. I will provide you with several links, each useful in one way or another, starting with this general introduction from The Guardian:
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Here is the media release from the IPBES, the association that created the report. It briefly describes what the authors believe to be the most notable findings of their work, one of which says, “Negative trends in nature will continue to 2050 and beyond in all of the policy scenarios explored in the Report, except those that include transformative change.” Climate change is listed among the things requiring transformation.
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For a really thorough summary of what is in the report, this one published by EurekAlert! would be hard to beat. EurekAlert! is the news-release distribution platform operated by the American Association for the Advancement of Science (AAAS).
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This review from Phys.org is especially useful because it includes a graph (from a separate source) showing how the rate of biodiversity loss is distributed over all parts of the Earth, by comparison with intact ecosystems. The central part of North America is one of the worst hot spots.
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Some comments on sea surface temperature anomaly. There is an interesting cool-type anomaly to be spotted on this map in the Bay of Bengal east of India. This is the normal outcome of a severe hurricane, or cyclone in this case, after it draws huge amounts of energy from ocean surface waters through the effects of massive wind-driven evaporation. It will take some time before normal warming recovers. Cyclone Nafi’s formation occurred far to the south in the Indian Ocean over a period of many days, leaving a long track of cool water that is still visible. The Southern Hemisphere is full of cool anomalies right now, leaving a total net of just plus 0.1C over the base period. Some of these are due to prolonged windstorms and some to the rising amount of fresh meltwater along the coast of Antarctica. Ocean water that is relatively undisturbed, like the large patch in the south Atlantic, has temperature increases that often run several tenths more than 1.0C over the base, more in line with the average gains that are found on nearby continental land.
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The latest report on the damage done by Cyclone Fani (Reuters). With 33 known dead, “Hundreds of thousands of people were left homeless…..The death toll could have been much greater if not for the massive evacuation in the days before the storm made landfall.”
Carl