Could the desert sun power the world?

“The human race must finally utilise direct sun power or revert to barbarism,” wrote Shuman in a letter to Scientific American magazine the following year. But the outbreak of the first world war just a few months later abruptly ended his dream and his solar troughs were soon broken up for scrap, with the metal being used for the war effort. Barbarism, it seemed, had prevailed.

“In 1986, in direct response to the Chernobyl nuclear accident, he scribbled down some figures and arrived at the following remarkable conclusion: in just six hours, the world’s deserts receive more energy from the sun than humans consume in a year.”

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Source : The guardian

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