Hidden beneath a kilometer of ice in northwestern Greenland, an impact crater that could swallow a city the size of London, Ont. is the subject of much debate about its origins and age.
Earth Sciences
Jun 1, 2021
0
7793
Something big happened to the planet about a million years ago. There was a major shift in the response of Earth's climate system to variations in our orbit around the Sun. The shift is called the Mid-Pleistocene Transition. ...
Earth Sciences
Nov 8, 2021
2
2904
The last million years of Earth history have been characterized by frequent "glacial-interglacial cycles," large swings in climate that are linked to the growing and shrinking of massive, continent-spanning ice sheets. These ...
Earth Sciences
Dec 10, 2020
141
3551
The 3.5 trillion tonnes of Greenland's ice sheet that has melted over the past decade has raised global sea levels by one centimetre and is heightening worldwide flood risks, new research showed on Monday.
Earth Sciences
Nov 1, 2021
4
487
A new computer model of accumulated carbon emissions predicts the likelihood of crossing several dangerous climate change thresholds. These include global temperature rise sufficient to lose the Greenland Ice Sheet and generate ...
Environment
Feb 22, 2017
13
1369
The Greenland Ice Sheet covers 1.7 million square kilometers (660,200 square miles) in the Arctic. If it melts entirely, global sea level would rise about 7 meters (23 feet), but scientists aren't sure how quickly the ice ...
Earth Sciences
Mar 27, 2023
41
737
Climate change is slowing down the conveyor belt of ocean currents that brings warm water from the tropics up to the North Atlantic. Our research, published today in Nature Climate Change, looks at the profound consequences ...
Earth Sciences
Jun 7, 2022
2
362
In the last days of Barack Obama's administration, US government scientists warned even more sea level rise is expected by century's end than previously estimated, due to rapid ice sheet melting at the poles.
Earth Sciences
Jan 24, 2017
9
609
Melting Himalayan glaciers are releasing decades of accumulated pollutants into downstream ecosystems, according to a new study.
Earth Sciences
Aug 1, 2019
2
1892
Ice on the Greenland Ice Sheet doesn't just melt. The ice actually slides rapidly across its bed toward the ice sheet's edges. As a result, because ice motion is from sliding as opposed to ice deformation, ice is being moved ...
Earth Sciences
Jul 10, 2019
3
720
