Sea levels may rise more rapidly due to Greenland ice melt

Run-off from vast ice sheet is increasing due to manmade global warming, says study

Rising sea levels could become overwhelming sooner than previously believed, according to the authors of the most comprehensive study yet of the accelerating ice melt in Greenland.

Run-off from this vast northern ice sheet - currently the biggest single source of meltwater adding to the volume of the world's oceans - is 50% higher than pre-industrial levels and increasing exponentially as a result of manmade global warming, says the paper, published in Nature on Wednesday.