Global warming has triggered an array of apocalyptic scenarios for future generations, from worsening drought, storms and floods to melted icesheets and rising seas. Now a new study, published Tuesday and coinciding with the UN climate talks in Paris, adds to the grim tableau: the risk that warming at the far end of the scale could rob our planet of oxygen. "We have identified another possible consequence of ... global warming that can potentially be more dangerous than all others," say a pair of scientists from Britain's University of Leicester.
