If life is abundant in the universe, atmospheric methane may be the first sign of life beyond Earth detectable by astronomers. Although nonbiological processes can generate methane, a new study by scientists at UC Santa Cruz ...
Astrobiology
Mar 28, 2022
1
731
From the ancient sludge of lakebeds in Asia's Tibetan Plateau, scientists can decipher a vision of Earth's future. That future, it turns out, will look very similar to the mid-Pliocene warm period—an epoch 3.3 million to ...
Earth Sciences
Mar 14, 2022
0
176
The increase in emissions of greenhouse gases into the atmosphere is only one of several serious global threats to our continued existence on Earth, and their reduction is at the core of international agreements like the ...
Earth Sciences
Mar 11, 2022
36
98
In recent decades, planetary scientists have developed ample evidence indicating that Mars was home to a relatively thick atmosphere and hosted liquid water on its surface during the Noachian, around 4 billion years ago. ...
Astronomy
Feb 8, 2022
1
50
Methane is a far more potent greenhouse gas than carbon dioxide, and it has a pronounced effect within first two decades of its presence in the atmosphere. In the recent international climate negotiations in Glasgow, abatement ...
Earth Sciences
Jan 10, 2022
11
266
Carbon dioxide (CO2) levels today are higher than at any point in the past 800,000 years or more.
Earth Sciences
Jan 7, 2022
2
52
Atmospheric carbon dioxide (CO2) levels have increased significantly over the last 50 years, resulting in higher global temperatures and abrupt changes to Earth's climate. Carbon capture and storage (CCS) is one of the new ...
Environment
Dec 23, 2021
8
103
Several tree-ring studies have been carried out in the Hengduan Mountain (HM) region. However, long-term growth trends and physiological responses of high-elevation forests to atmospheric carbon dioxide (CO2) rise and climate ...
Plants & Animals
Dec 20, 2021
0
3
Because plants take up carbon dioxide from the atmosphere and convert it into food, forests and other similar ecosystems are considered to be some of the planet's most important carbon sinks. In fact, the United States and ...
Environment
Dec 8, 2021
5
125
For more than 30 years, David Harwood, professor in the Department of Earth and Atmospheric Sciences at the University of Nebraska-Lincoln, has been a leading scientist investigating how global temperature change affected ...
Environment
Nov 29, 2021
0
6
