Jasper Carlberg / AFP/Getty Images
About 300 people gathered in the City Hall Square in Copenhagen to form the logo of the 350 campaign on the International Day of Climate Action. The campaign is calling for carbon emissions to be cut to 350 parts per million.
About 300 people gathered in the City Hall Square in Copenhagen to form the logo of the 350 campaign on the International Day of Climate Action. The campaign is calling for carbon emissions to be cut to 350 parts per million. (Jasper Carlberg / AFP/Getty Images)
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