The United Nations warns humanity has just three years left to dramatically lower greenhouse gas emissions or risk facing a world that’s uninhabitable to many of its residents. The warning by six climate experts was published in the journal Nature. It finds that without immediate action by 2020, the Earth’s average temperature will rise by more than the 2-degree Celsius upper limit set by the Paris climate accord.
https://www.democracynow.org/2017/6/30/headlines/un_cut_emissions_sharply_by_2020_or_face_climate_catastrophe
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