Environmental Protection Agency Administrator Lisa P. Jackson recently announced that her agency would proceed with twice-delayed regulations targeting power plants that emit carbon dioxide and other greenhouse gases.
Who needs leafy greens and carrots when pizza and french fries will do?
A map of radioactive contamination across Japan from the Fukushima power plant disaster confirms high levels in eastern and northeastern areas but finds much lower levels in the western part of the country, thanks to mountain ranges, researchers say
Cave painters during the Ice Age were more like da Vinci than Dali, sketching realistic depictions of horses they saw rather than dreaming them up, a study of ancient DNA finds.
Thousands of times every day, drilling deep underground causes the earth to tremble. But don't blame the surprise flurry of earthquakes in Oklahoma on man's thirst for oil and gas, experts say.
In the ongoing quest to better anticipate earthquakes, scientists embarked on an ambitious experiment: Identify the likeliest places where magnitude-4.9 quakes or stronger would occur in seismically active California over a five-year period.

Keeping up with the news probably has been very discouraging recently for many Americans. In one 24-hour period, sobering reports poured in warning of historic catastrophes in the United States and Europe.

Space junk has made such a mess of Earth's orbit that experts say we may need to finally think about cleaning it up.
Space junk has made such a mess of Earth's orbit that experts say we may need to finally think about cleaning it up.