World Greenland and Antarctica are now melting six times faster than in the 1990s, accelerating sea-level rise March 16, 2020March 17, 2020 Doyle Rice, USA TODAY Comments Off on Greenland and Antarctica are now melting six times faster than in the 1990s, accelerating sea-level rise Greenland and Antarctica have lost 6.4 trillion tons of ice in the past three decades, accelerating sea-level rise around the world.