Savannas are becoming increasingly woodier as trees gain the upper hand over grasses in these ecosystems, but this encroachment may proceed more slowly than previously thought, new University of Otago-led research suggests.
Environment
Aug 12, 2015
0
9
Titan is a mysterious orange-socked moon of Saturn that is exciting to astrobiologists because it has some of the same kinds of chemicals that were precursors to life on Earth. It also has a hydrological cycle that allows ...
Space Exploration
Jun 30, 2015
0
63
Plankton are vital to life on Earth—they absorb carbon dioxide, generate nearly half of the oxygen we breathe, break down waste, and are a cornerstone of the marine food chain. Now, new research indicates the diminutive ...
Earth Sciences
May 27, 2015
1
108
Fertilizers are known to promote the growth of toxic cyanobacterial blooms in freshwater and oceans worldwide, but a new multi-institution study shows the aquatic microbes themselves can drive nitrogen and phosphorus cycling ...
Ecology
Jan 8, 2015
0
557
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
Even during summer dry spells, some patches of soil in forested watersheds remain waterlogged. Researchers have discovered that these patches act as hot spots of microbial activity that remove nitrogen from groundwater and ...
Environment
Nov 3, 2014
0
0
Nitrite-oxidizing bacteria are key players in the natural nitrogen cycle on Earth and in biological wastewater treatment plants. For decades, these specialist bacteria were thought to depend on nitrite as their source of ...
Cell & Microbiology
Aug 29, 2014
0
0
Human tampering with global carbon balances has received massive public attention because of its effects on global warming, but we pay less attention to another set of chemical processes we are similarly disrupting: human ...
Environment
Aug 7, 2014
0
0
(Phys.org) —In 1900, about 1.6 billion people lived on Earth. Just a few generations later, over four times as many of us share the planet.
Environment
Jun 30, 2014
0
2
A new paper co-written by four University of Montana researchers finds that humans have more than doubled tropical nitrogen inputs.
Environment
May 19, 2014
0
0
