When exposed to nitrogen fertilizer over a period of years, nitrogen-fixing bacteria called rhizobia evolve to become less beneficial to legumes - the plants they normally serve, researchers report in a new study.
Environment
Feb 23, 2015
1
27
Conventional scientific wisdom has it that plants and other creatures have only lived on land for about 500 million years, and that landscapes of the early Earth were as barren as Mars.
Archaeology
Jul 22, 2013
4
0
China will sharply boost renewable energy this year, it said Tuesday, after repeated bouts of heavy pollution across much of the country heightened public anger on the issue over recent weeks.
Computer Sciences
Mar 5, 2013
1
0
An international team of researchers including Svante Pääbo and Qiaomei Fu of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, sequenced nuclear and mitochondrial DNA that had been extracted from ...
Archaeology
Jan 21, 2013
21
5
(Phys.org)—CO2 levels in fossil soils from the Late Jurassic confirm that climate, vegetation and animal richness varied across the planet 150 million years ago, suggesting future human changes to global climate will heavily ...
Earth Sciences
Jan 8, 2013
2
0
Ancient multicellular fossils long thought to be ancestors of early marine life are remnants of land-dwelling lichen or other microbial colonies, says University of Oregon scientist Gregory Retallack, who has been studying ...
Paleontology & Fossils
Dec 12, 2012
3
0
Global demand for meat, milk and eggs has tripled in the past four decades and is expected to double by 2050. Increased global livestock production has great impacts on the environment and increases global warming. A major ...
Environment
Mar 9, 2012
0
0
Determining with precision the carbon balance of North America is complicated, but researchers at Oak Ridge National Laboratory have devised a method that considerably advances the science.
Environment
Mar 6, 2012
0
0
Research by University of Tennessee, Knoxville, faculty has discovered that bacteria's move from sea to land may have occurred much later than thought. It also has revealed that the bacteria may be especially useful in bioenergy ...
Cell & Microbiology
Dec 22, 2011
0
0
Drying of northern wetlands has led to much more severe peatland wildfires and nine times as much carbon released into the atmosphere, according to new research led by a University of Guelph professor.
Environment
Nov 1, 2011
9
0
