“Alarming” Amazon Drought—River Hits New Low

National Geographic: The drought also fits within predictions of climatic extremes this century due to global warming, Reuters reported. A fisher works on his boat stranded on the Negro River in northern Brazil on October 22. Droughts can actually contribute to greenhouse gas emissions. That's because the vast Amazon rain forest acts as a carbon sink, soaking up about two billion tons of atmospheric carbon a year, according to Reuters. But when trees die or wither--as occurred during the 2005 Amazon drought--the......

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