Successful Paris Agreement could halve ice loss by 2100 Two new papers assess the impact of melting land ice on sea level rise. Credit: Photodynamic / Getty Images Limiting global warming to 1.5°C could halve the amount of Antarctic land ice lost by the end of the century, but maintaining current emissions – projected to raise global temperatures by 3°C by 2100 – will accelerate ice sheet loss and sea level rise past a point-of-no-return by 2060, according to two papers published today in Nature. The Paris Agreement is an international accord among 197 nations to limit global warming this century to 2°C, while a more ambitious target of 1.5°C is seen as the preferred – but perhaps less realistic – result.