- Feb 12, 2013
- Reaction score
- Political Leaning
At the turn of the 21st century, unbeknownst to the world, the Greenland ice sheet likely entered a state of sustained mass loss that will persist for the foreseeable future, according to a new study.
So, we don't even have the 12 years that AOC warned about. That comes as no surprise to me. However, I am sure there will be a lot of denials and citations from dubious websites.
There always are.
...beginning around the year 2000, ice discharged through outlet glaciers—channels that flow outward to the sea—started to outpace annual snowfall that, in a balanced year, would replenish lost ice. The authors sifted through 40 years of satellite data, tracking outlet glacier velocity, thickness, and calving front position over time to determine the rate of ice loss. The shift they found represents a tipping point that is unlikely to be reversible in the near future. King told GlacierHub, "It's like a gear change… we've accelerated the drainage at the edge of the ice sheet, and now… we expect mass loss to be the new norm for the ice sheet in the near future."
Greenland ice sheet reached tipping point 20 years ago, new study finds