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Blocking sunlight to cool Earth won't reduce crop damage from global warming


August 8, 2018

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Proposals to inject sulfate aerosols into the upper atmosphere to block and scatter sunlight and reduce global temperatures could, some say, also increase crop yields because of reduced heat stress on plants. A University of California, Berkeley, study shows that other effects counterbalance the positive effects of reduced heat stress. Specifically, blocking sunlight reduces photosynthesis, which offsets any improvement from slightly cooler temperatures. Full Story

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University of California, Berkeley

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