Burning all the Earth’s remaining coal, oil and natural gas would trigger enough warming to melt the entire Antarctic ice shelf, eventually obliterating coastal regions around the world, researchers said in a report Friday. That worst-case scenario would be a long way off — several thousand years, according to computer simulations published by the journal Science Advances. Still, the results are a reminder of the potentially cataclysmic impacts of an Antarctic meltdown, according to the German, U.S. and U.K. researchers. About 1 billion people live in coastal areas that would be swamped if the entire ice sheet was lost, they said. “The west Antarctic ice sheet may already have tipped into a state of unstoppable ice loss, whether as a result of human activity or not,” Anders Levermann, of the Potsdam Institute for Climate Impact Research, said in a statement. “If we want to pass on cities like Tokyo, […]