Altogether, the planet lost a whopping 28 trillion tons of ice between 1994 and 2017. It accounts for both the Greenland and Antarctic ice sheets, Arctic and Antarctic sea ice and mountain glaciers all over the world. Since the 1990s, Antarctica has lost more than 2.6 trillion tons and Greenland has lost nearly 4 trillion. These ice shelves help to stabilize the ice sheet’s marine-terminating glaciers and hold back the flow of ice behind them. In addition to the ice sheet’s losses, Antarctica’s ice shelves have lost more than 8.6 trillion tons of mass since the 1990s.