Even if countries adhere to the Paris climate agreement hammered out last fall, capping global warming at 2°C would likely require net zero greenhouse gas emissions by 2085 & substantial negative emissions over the long term, according to scientists at the National Center for Atmospheric Research.

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Even if countries adhere to the Paris climate agreement hammered out last fall, capping global warming at 2°C would likely require net zero greenhouse gas emissions by 2085 & substantial negative emissions over the long term, according to scientists at the National Center for Atmospheric Research.