From crop failures to coral bleaching, a new tool developed by climate scientists aims to predict in detail the impacts of each megatonne of carbon emissions
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The emissions from a single coalmine expansion might not seem like a lot when compared with the scale of global emissions, which are measured in gigatonnes (that’s one thousand million tonnes).
However, scientists have been saying for years that every tonne of carbon dioxide adds to global warming, and every fraction of a degree increase matters.