The Environmental Protection Agency wants cleaner air at national parks across the country, including Guadalupe Mountains and Big Bend in Texas.
Eel populations, which had been declining on the East Coast, are making a comeback on Staten Island, with large numbers of them appearing earlier than normal.
A study published in the journal Limnology and Oceanography looked at production declines at an Oregon oyster hatchery and carbon dioxide, which causes acidification of seawater.
The agency said that the group, the Natural Resources Defense Council, had failed to show that the popular herbicide was harmful as used.
The industry faces major obstacles, but amid concern about global warming, there is support for at least keeping a toe in the water.
The hunt for new oil and gas reserves is heading into Africa and other unexplored territories as subsidies for alternative energy are cut and as a result of the nuclear crisis in Japan last year.
Eco-sculptures are the latest indication that Mexico City has become a leader in environmental efforts for the developing world.
Tribes in northwestern Montana hope to turn public opinion against the "hollowing out" of a spiritual site, Chicago Peak, where a copper and silver mine is planned.
With a mild winter in much of the country having tamped down gas demand and with production of natural gas thriving due to the success of hydraulic fracturing technology, "the country is running out of storage space and as a result some producers are slowing down, the Associated Press reports.
Google is installing an ice-based cooling system to save money on electricity at its new data center in Taiwan.
