Climate change, nitrogen deposition and fire suppression are leading to shifts in the types of trees that dominate American forests. These changes will have environmental consequences, potentially positive and negative, according ...
Ecology
Apr 11, 2019
0
118
Researchers have found that global changes, including warming temperatures and increased levels of carbon dioxide in the atmosphere, are causing a decrease in the availability of a key nutrient for terrestrial plants. This ...
Environment
Oct 22, 2018
4
1282
(Phys.org)—A team of researchers from Taiwan and the U.S. has found evidence of higher levels of anthropogenic surface nitrogen in the South China Sea, likely due to an increase in atmospheric nitrogen levels. In their ...
When considering human impacts on earth systems, disturbance to the carbon cycle grabs the headlines. But another critically important earth process, the nitrogen cycle, has also seen major disruption from human activity.
Environment
May 9, 2016
7
476
A new study finds that human activities are likely contributing far less nitrogen to the open ocean than many atmospheric models suggest. That's generally good news, but it also nullifies a potential side benefit to additional ...
Environment
Jan 6, 2016
16
475
Human-induced changes to Earth's carbon cycle - for example, rising atmospheric carbon dioxide and ocean acidification - have been observed for decades. However, a study published this week in Science showed human activities, ...
Environment
Nov 27, 2014
3
0
Extensive, explosive volcanic eruptions may disrupt a crucial aspect of the global nitrogen cycle, say researchers who have investigated ash deposits on the ocean floor.
Environment
Apr 7, 2014
0
1
(Phys.org) —Ongoing work by University of Alberta researcher Scott Chang is providing cautious optimism about how forest soil and trees are coping with oilsands development in Northern Alberta.
Environment
Dec 19, 2013
1
0
(Phys.org) —Researchers have called for a system of carbon emission assessments that reflect better the true contribution of each emitting nation to the increase in atmospheric CO2 and promote preservation of forests, particularly ...
Environment
Jul 16, 2013
17
0
(Phys.org)—A team of researchers with members from several countries around the world, and led by Chinese agriculturalist Fusuo Zhang has found that nitrogen deposition over China has increased by over 60 percent over the ...
