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Could marine cloud machines cool the planet?

Mongabay: In 1990, British cloud physicist John Latham published a paper arguing he could cool global climate by brightening clouds over the ocean. Most colleagues ignored the paper, titled “Control global warming?”--probably because this thing called global warming was not yet a hot topic. Now, more than two decades later, Latham continues to develop what has become one of the most promising and controversial ideas in climate control. “Marine cloud brightening” might sound benign, but hairs rise when it’s...