Agriculture Secretary Tom Vilsack speaks about the Aim for Climate Initiative with United Arab Emirates Minister for Climate Change and…
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Former vice president and Democratic presidential candidate Joe Biden, second from right, looks at an array of solar panels during…
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Planet Mars with moon, illustration Pitris/Getty Images/iStockphoto Earth would be thrown out of solar system by adding planet between Mars…
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FILE – This Monday, Jan. 12, 2015 photo supplied by NASA demonstrates the initial notable solar flare of 2015, as…
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