The acidity of the atmosphere is increasingly determined by carbon dioxide and organic acids such as formic acid. The second of these contribute to the formation of aerosol particles as a precursor of raindrops and therefore ...
Earth Sciences
May 12, 2021
0
13
When winter storms threaten to make travel dangerous, people often turn to salt, spreading it liberally over highways, streets and sidewalks to melt snow and ice. Road salt is an important tool for safety, because many thousands ...
Environment
Apr 12, 2021
1
1086
Researchers believe they have closed the case of what killed the dinosaurs, definitively linking their extinction with an asteroid that slammed into Earth 66 million years ago by finding a key piece of evidence: asteroid ...
Earth Sciences
Feb 24, 2021
17
2430
Mass extinctions of land-dwelling animals—including amphibians, reptiles, mammals, and birds—follow a cycle of about 27 million years, coinciding with previously reported mass extinctions of ocean life, according to a ...
Ecology
Dec 11, 2020
23
3357
Historically, coal-fired power plants were the largest source of reactive sulfur, a component of acid rain, to the biosphere. A new study recently publishing Aug. 10 in the journal Nature Geoscience shows that fertilizer ...
Earth Sciences
Aug 10, 2020
0
658
Canada sits on the third-largest oil reserve in the world. Most of it is in the Alberta oilsands, where companies extract bitumen, a crude oil with the consistency of peanut butter.
Environment
Aug 7, 2020
0
5
The impact event that formed the Chicxulub crater (Yucatán Peninsula, México) caused the extinction of 75% of species on Earth 66 million years ago, including non-avian dinosaurs. One place that did not experience much ...
Earth Sciences
Jul 14, 2020
1
237
Gathered around a crackling campfire, a flat calm on the lake, the sunset's brilliant orange reflecting off the water, you hear a haunting cry echo through the trees. It's the call of the common loon, a sound synonymous with ...
Plants & Animals
Jul 13, 2020
0
49
A new study from Columbia University finds that nitrogen emissions from agricultural production in the tropics is likely to increase and, in some cases, overtake temperate climates, exposing more people to polluted air and ...
Environment
Mar 6, 2020
0
4
Asteroid strikes upset the environment and provide clues via the elements they leave behind. Now, University of Tsukuba researchers have linked elements that are enriched in the Cretaceous–Paleogene (KPg) boundary clays ...
Earth Sciences
Feb 21, 2020
0
8
