Climate change behind extreme Amazon drought: study

Climate change was the chief driver of the devastating drought that gripped the Amazon last year, say researchers, as warming threatens one of the world's most important ecosystems for stabilizing the global climate.

Methane emitted by humans vastly underestimated, researchers find

Methane is a powerful greenhouse gas and large contributor to global warming. Methane emissions to the atmosphere have increased by approximately 150 percent over the past three centuries, but it has been difficult for researchers ...

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