Australia's 'great green boom' of 2010-11 has been undone by drought
2 hours ago
Back in 2010-11 Australia "greened", as record-breaking rains triggered a boom in plant growth that removed huge amounts of carbon dioxide from the atmosphere and stored it as carbon in the landscape.
During last warming period, Antarctica heated up two to three times more than planet average
16 hours ago
Following Earth's last ice age, which peaked 20,000 years ago, the Antarctic warmed between two and three times the average temperature increase worldwide, according to a new study by a team of American geophysicists.
New study of water-saving plants advances efforts to develop drought-resistant crops
20 hours ago
As part of an effort to develop drought-resistant food and bioenergy crops, scientists at the Department of Energy's Oak Ridge National Laboratory have uncovered the genetic and metabolic mechanisms that allow certain plants ...
What is the weather like on Venus?
23 hours ago
Venus is often called Earth's "Sister Planet" because of all the things they have in common. They are comparable in size, have similar compositions, and both orbit within the Sun's habitable zone. But beyond that, there are ...
When permafrost melts, what happens to all that stored carbon?
Dec 05, 2016
The Arctic's frozen ground contains large stores of organic carbon that have been locked in the permafrost for thousands of years. As global temperatures rise, that permafrost is starting to melt, raising concerns about the ...
Climate cycles may explain how running water carved Mars' surface features
Dec 01, 2016
Dramatic climate cycles on early Mars, triggered by buildup of greenhouse gases, may be the key to understanding how liquid water left its mark on the planet's surface, according to a team of planetary scientists.
A new model for microbial communities in the hyporheic zone
Dec 01, 2016
Ecological processes govern seasonal changes in microbial communities living along rivers in the hyporheic zone, where groundwater and surface water mix. These processes have been well-studied in plant and animal communities. ...
Production and shedding of tissues in sponges found to be slower than believed
Nov 30, 2016 report
(Phys.org)—A pair of researchers with the University of Alberta in Canada has found that shedding and production of new tissue in sponges is much more complicated and slower than has been thought. In their paper published ...
Climate models may be overestimating the cooling effect of wildfire aerosols
Nov 30, 2016
Whether intentionally set to consume agricultural waste or naturally ignited in forests or peatlands, open-burning fires impact the global climate system in two ways which, to some extent, cancel each other out. On one hand, ...
How much carbon and nitrogen is there on planet Earth?
Nov 29, 2016
Carbon and nitrogen are central to life on Earth – life cannot exist without them, but an overabundance in the atmosphere imperils the life we have. So how much carbon and nitrogen is there on (and in) planet Earth? And ...