Are cramped chickens crazy chickens? Researchers are trying to answer that question through several studies that intend to take emotions out of an angry debate

National forests can be used as a carbon "sink" with vast numbers of trees absorbing carbon dioxide to help slow global warming, the Forest Service chief said

Power-hungry TVs will be banned from store shelves in California after state regulators Wednesday adopted a first-in-the-nation mandate to reduce electricity

A survey released Tuesday suggests people have largely embraced recycling bottles and cans, and are inclined to turn down thermostats to save energy. But it

Starting Tuesday, the molded cushions that protect two of Dell's computer models from damage during shipping will be made of crushed bamboo.

Dell is among the first companies to use bamboo in this way. Others include Method Products Inc., a maker of environmentally friendly cleaning supplies.

Record high temperatures are occurring more than twice as often as record lows.

Eighty-nine House members sent a letter to Interior Secretary Ken Salazar asking him to protect 9.4 million acres of red rocks lands in Utah while Congress

After nearly 40 years of struggling for survival, the brown pelican is coming off the endangered species list.

Nearly half of lakes and reservoirs nationwide contain fish with potentially harmful levels of the toxic metal mercury, according to a federal study released

A New Jersey candy factory that produces M&Ms flipped the switch Monday on a dedicated solar array that's the largest in the nation to serve a single

Senate Democrats sidestepped a Republican boycott Thursday, pushing a climate bill out of committee in an early step on a long and contentious road to passage.

The popular $3 billion Cash for Clunkers program mostly involved swaps of old Ford or Chevrolet pickups for new ones, according to an analysis of new federal

The arid, wind-swept ground stripped of topsoil by Dust Bowl storms has laid undisturbed beneath a protective cover of native grasses that took two decades to

California lawmakers on Wednesday passed an $11 billion overhaul of the state's antiquated water system in a bid to supply a soaring population while