Greenhouse gas carbon dioxide ramps up aspen growth
The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.
Dec 04, 2009
3.5 / 5 (8)
6
Dec 04, 2009
3.5 / 5 (8)
6
Tiny shelled creatures shed light on extinction and recovery 65 million years ago
An asteroid strike may not only account for the demise of ocean and land life 65 million years ago, but the fireball's path and the resulting dust, darkness and toxic metal contamination may explain the geographic ...
Mar 01, 2010
4 / 5 (7)
2
|
Detection of two new exoplanets with Kepler, SOPHIE and HARPS-N
An international team of astronomers, including Alexandre Santerne of the EXOEarths team at CAUP, identified and characterized two new exoplanets, thanks to combined observations from the Kepler space telescope, ...
Apr 30, 2013
3.9 / 5 (7)
0
|
Hypoxia increases as climate warms
A new study of Pacific Ocean sediments off the coast of Chile has found that offshore waters experienced systematic oxygen depletion during the rapid warming of the Antarctic following the last "glacial maximum" period 20,000 ...
Dec 15, 2009
4.3 / 5 (6)
3
Researchers analyze future snowpack decline from California to the Himalayas
(Phys.org)—Snowpack, an essential source of drinking water and agricultural irrigation for billions of people, could shrink significantly within the next 30 years, according to a study led by Stanford climate ...
Nov 13, 2012
2.6 / 5 (10)
3
|
Cluster encounters a natural particle accelerator
(PhysOrg.com) -- ESA's Cluster satellites have flown through a natural particle accelerator just above Earth's atmosphere. The data they collected are unlocking how most of the dramatic displays of the northern ...
Feb 01, 2011
5 / 5 (5)
1
|
Further, faster, higher: Wildlife responds increasingly rapidly to climate change
Why does Sirius twinkle?
At this time of year, after dark we in the northern hemisphere are able to see the mighty constellation of Orion rise high in the sky with a very bright companion in a nearby constellation: Sirius – The ...
Jan 17, 2012
5 / 5 (5)
10
Black carbon, tropospheric ozone most likely driving Earth's tropical belt expansion
Black carbon aerosols and tropospheric ozone, both manmade pollutants emitted predominantly in the Northern Hemisphere's low- to mid-latitudes, are most likely pushing the boundary of the tropics further polew ...
May 16, 2012
5 / 5 (5)
7
|
Comet posing beside crescent moon in cool photo op
Now's your chance to see the comet that passed within 100 million miles of Earth last week. Twilight on Tuesday will provide the best photo op for the comet called Pan-STARRS. It will be visible in the Northern ...
Mar 11, 2013
5 / 5 (5)
0
Frost-Covered Phoenix Lander Seen in Winter Images
(PhysOrg.com) -- Winter images of NASA's Phoenix Lander showing the lander shrouded in dry-ice frost on Mars have been captured with the High Resolution Imaging Science Experiment, or HiRISE camera, aboard ...
Nov 05, 2009
4.6 / 5 (5)
0
Taking a Bite of Antarctic Ice
Scientists with NASA’s IceBite project are heading this week for University Valley, a hanging valley perched more than 1600 feet (more than 1 mile) above sea level in Antarctica’s McMurdo Dry Valleys. ...
Nov 16, 2009
3.8 / 5 (6)
1
Ice core drilling effort to help assess abrupt climate change risks
An international science team involving the University of Colorado at Boulder that is working on the North Greenland Eemian Ice Drilling project hit bedrock July 27 after two summers of work, drilling down ...
Aug 02, 2010
4.4 / 5 (5)
0
Nitrogen from humans pollutes remote lakes for more than a century
Nitrogen derived from human activities has polluted lakes throughout the Northern Hemisphere for more than a century and the fingerprint of these changes is evident even in remote lakes located thousands of ...
Dec 15, 2011
4.4 / 5 (5)
1
|
A look at the world explains 90 percent of changes in vegetation
In the last thirty years, vegetation has changed significantly the world over. Until recently, the extent to which the climate or humankind was responsible remained unclear. However, geographers from the ...
Apr 16, 2013
4.4 / 5 (5)
2
