Growing evidence from Antarctica suggests that even if countries hit the lower target for temperature increases set by the Paris Agreement, it may not be enough to prevent some countries from suffering catastrophic damage caused by ice-sheet melting As countries gather in Bonn, Germany, to finalise the first evaluation of Paris climate-agreement pledges — known as the Global Stocktake — scientists have joined an unusual new grouping of countries urging “2°C is too high”, a warning that, based...