Greenland ice melting past 'tipping point': study

The melting of Greenland's ice cap has gone so far that it is now irreversible, with snowfall no longer able to compensate for the loss of ice even if global warming were to end today, according to researchers. Climate change is having a devastating effect on the world's glaciers, with the ice melt posing a threat to millions of people around the world. In the 1980s and 1990s, the ice cap lost around 450 billion tonnes of ice per year, which was compensated by snowfall, the scientists said after analysing 40 years of data. But the ice melt has accelerated this century, climbing to 500 billion tonnes and no longer sufficiently replenished with snow.