Mighty floods have carved out deep canyons on Earth. New research suggests this may have required less power than previously thought. Collecting such data, however, may be demanding.
Earth Sciences
May 12, 2021
0
5
If you were to visit the Great Basin and Colorado Plateau a thousand years ago, you'd find conditions remarkably familiar to the present. The climate was warm, but drier than today. There were large populations of Indigenous ...
Earth Sciences
Apr 14, 2021
1
281
Imagine not a white, but a green Arctic, with woody shrubs as far north as the Canadian coast of the Arctic Ocean. This is what the northernmost region of North America looked like about 125,000 years ago, during the last ...
Earth Sciences
Mar 17, 2021
99
1728
Scientists have detected what they say are the sediments of a huge ancient lake bed sealed more than a mile under the ice of northwest Greenland—the first-ever discovery of such a sub-glacial feature anywhere in the world. ...
Earth Sciences
Nov 10, 2020
0
84
A new study is sounding the alarm on the impact climate change could have on one of the world's most vulnerable regions.
Earth Sciences
Oct 9, 2020
0
180
Humans have manipulated and managed rivers with dams for millennia. The number of river dam projects is predicted to rise sharply in the future, especially in the tropics where demand for hydroelectricity and water is accelerating. ...
Environment
Jul 6, 2020
0
83
The recent massive wildfires in Australia have killed more than 30 people and an estimated 1 billion animals, and burned 2,500 homes and millions of acres. And the human toll is expected to rise even after the blazes wind ...
Environment
Jan 28, 2020
0
9
Soil erosion reduces the productivity of ecosystems, it changes nutrient cycles and it thus directly impacts climate and society. A team of researchers recorded temporal changes of soil erosion by analyzing sediment deposits ...
Earth Sciences
Oct 29, 2019
0
91
Native American use of galena at Kincaid Mounds, a settlement occupied during the Mississippian period (1150 to 1450 CE), resulted in more than 1.5 metric tons of lead pollution deposited in a small lake near the Ohio River. ...
Environment
Oct 21, 2019
2
148
From the Great Pacific garbage patch to inland rivers, plastics are among the most widespread contaminants on Earth. Microplastics—particles of plastic smaller than five millimeters—are especially pervasive. As they build ...
Environment
Sep 24, 2019
0
143
