https://phys.org/news/2022-02-greenland-ice-cap-years.html

Greenland’s immense ice sheet has lost enough ice in the past 20 years to submerge the entire United States in half a metre of water, according to data released this week by Danish researchers.

The climate is warming faster in the Arctic than anywhere else on the planet and melting ice from Greenland is now the main factor in the rise in the Earth’s oceans, according to NASA.

Since measurements began in 2002, the Greenland ice sheet has lost about 4,700 billion tonnes of ice, said Polar Portal, a joint project involving several Danish Arctic research institutes.

This represents 4,700 cubic kilometres of melted water—”enough to cover the entire US by half a meter”—and has contributed 1.2 centimetres tosea level rise, the Arctic monitoring website added.

Polar Portal’s…