Severe drought is once again causing serious food shortages in North Korea, requiring outside humanitarian assistance. One can hope for a resolution that is broadly favorable to all of us.
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Meanwhile Shanghai, suffering from its second major heatwave in four years, has experienced a new all-time record high temperature.
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Today’s biodiversity crisis viewed within a context of past mass extinctions (the Guardian). Climate change, in several different modes, is seen as a common denominator. (I would have added more comment about the currently unique role of other human activities beside climate change such as large-scale habitat destruction and widespread pollution of the environment.)
–A recent scientific study provides strong reasons for protecting forest integrity as a critically important means of protecting biodiversity:
A surprising way to protect forests and reduce carbon emissions (NY Times). In some parts of the world you can accomplish this by paying native people not to cut down trees. The cost of one such program turned out to be $0.46 per ton of CO2 not emitted, with the funds paid out then put to good use relieving poverty. For comparison, future removal of CO2 from the atmosphere is likely to cost well over $100 per ton. This program should be seriously refined and extended.
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A major breakthrough improvement is in the works for lithium/ion batteries. Silicon anodes can deliver three to five times more capacity than current ones made of graphite. This work was done in Korea, based on the recent findings of a Nobel Laureate who is quoted in this story, and reported in the journal Science. “The authors also mention that they are currently working with a major battery maker to get their molecular pulleys integrated into real battery products.”
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A summary report on the monumental growth of plastics and the pollution problems that result. The material threatens a “near permanent contamination of the natural environment” and what is now lying around is expected to increase four times by 2050. No one seems to know what to do about it.
Carl