A plan for the world's largest solar array in California promises clean energy -- but critics say green energy isn't always green.

"An agreement to protect a Utah canyon decorated by ancient American Indian art is expected to allow energy development in the area to move forward."

"The Obama administration said Wednesday it is going forward with a contentious plan to round up about 2,500 wild horses in Nevada."

"The top U.N. climate official said Wednesday that though the Copenhagen global warming summit went sour, countries should avoid blaming each other and get down to work on a better deal next year."

Some golf courses get a bad rap from environmentalists, but there's a budding green movement in the golf industry.

The first case of Marburg virus, a deadly relative of Ebola, has been reported in North America. A Colorado traveler brought it home after contact with bats in a cave in Uganda.

"Communities in cold climates around the USA are changing their approach to snow and ice removal from highways in an effort to reduce potential harm to wildlife and vegetation caused by road salt runoff."

"Montana's top elected officials backed a plan Monday to put vast tracts of coal up for lease, bucking pressure from environmentalists who say digging up and burning the fuel will be an "abomination" that endangers the planet."

"Thousands of people in the heart of Frisco [Texas] are exposed to toxic lead pollution from a battery recycling plant that wants to expand production."

"A report has found that farmers are using more herbicides on genetically engineered soybeans, corn, and cotton because of resistant weeds."