The debate over raw, or unpasteurized, milk is heating up as advocates claim it's safe and state governments weight the risks.
Norway has offered to pay Indonesia not to cut down its rainforests. The effort is aimed at curbing global warming, but some think it's a lot of hot air.
In the middle of inner-city Boston, kids are running and playing among trees, grass and pools of water in a new natural playground.
Scientists are struggling to figure out the environmental impact of the Gulf Coast oil spill. Chemical companies are making that task difficult by withholding samples of chemical dispersants.
A major new study of cell phones couldn't conclusively prove that cell phones are a risk, but that doesn't mean they aren't dangerous.
Cattle are often blamed for desertification and destruction of African land. In Zimbabwe, livestock are helping bring land back to life.
Building a farmer's market in the Crenshaw neighborhood of Los Angeles was a good start, but getting people to shop there is proving difficult.
The Gulf Coast oil spill threatens fragile ecosystems like Alabama's Grand Bay marsh. Conservationists are touring the pristine area before it's too late.
Marsh Fork Elementary in West Virginia is located in the shadow of a coal mine. Ed Wiley is helping them get out.
The tens of thousands of industrial chemicals used in the United States are regulated by a 30-year-old law that is in desperate need of an overhaul.