Topic: Carnegie Institution
Arctic monitoring stations show carbon dioxide levels are now above 400 parts per million. Carbon dioxide is the chief climate-change gas and stays in the atmosphere for 100 years. Before the Industrial Age, carbon dioxide levels were 275 ppm.
New billboards designed by the Heartland Institute compare climate scientists to the Unabomber, and other mass murderers. Climate scientists and other writers respond.
NASA's Messenger craft has been orbiting Mercury for 88 days. Among its findings: a Saturn-like magnetic field, high concentrations of sulfur, and some support for the notion there is water ice in shadowed craters.
06/16/2011 08:00 pm
The 13th- and 14th-century Mongol invasion of Asia decreased global carbon dioxide by less than 0.1 part per million, researchers have found.
02/08/2011 03:29 pm
But tomorrow's could be, unless efforts to combat climate change include much more development of carbon-free sources of energy. The findings appear Thursday in the journal Science.
09/09/2010 07:53 pm
Trojan asteroid 2008 LC18 is orbiting in a fixed spot in Neptune's orbit where the gravitational pull of Neptune and the sun balance out. Its discovery may help shed light on questions about planetary formation.
08/13/2010 04:15 pm
Researchers determined that the lunar water likely originated early in the moon's formation history, suggesting that it is, in fact, native to the moon.
06/14/2010 05:25 pm
Top international scientists will take part in an independent review of the Intergovernmental Panel on Climate Change (IPCC) and its reports on global warming, which have been widely criticized recently for inaccuracies.
03/11/2010 04:08 pm
A new study estimates that animals and plants will have to migrate, on average, nearly a quarter of a mile each year to keep up with shifting climate belts caused by global warming.
12/24/2009 08:06 am
By gauging the subtle differences in light given off by a planet 1,000 light-years away, it shows that it's up to the job.
08/07/2009 01:00 am