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Columbus and Cincinnati are two of 20 cities selected as winners in a climate challenge program established by Bloomberg Philanthropies. The Bloomberg…
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U.S. production of heat-trapping greenhouse gases fell 2.7 percent last year. But larger cuts will be needed to address climate change.
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A scientific panel, convened by the U.N., lays out a challenging path to keep the global climate from warming more than 1.5 degrees Celsius — the red line for dangerous consequences.
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As the level of carbon dioxide in the air rises because of human activity, scientists are trying to pin down how plants are affected. There's evidence that it's changing many important plants we eat.