Yellowstone National Park administrators say shipments of wild bison to slaughter are done for the winter after almost 600 animals were removed in an effort to shrink their numbers.
Oregon is about to embark on a first-in-the-nation program that aims to charge car owners not for the fuel they use, but for the miles they drive.
Alaska wildlife officials are preparing to release North America's largest land mammal into its native U.S. habitat for the first time in more than a century.
(AP) -- California is poised to formally adopt the nation's most comprehensive so-called "cap-and-trade" system, designed to provide a financial incentive for polluters to reduce greenhouse gas emissions.
The Exxon Valdez tanker that was involved in a huge oil spill off Alaska in 1989 has been banned from entering India where it was due to be dismantled, state officials said Wednesday.
The United States and China aired concerns on hacking, which has emerged as a major irritant between the world's two largest economies in the build up to annual talks this week.
(AP) -- Asserting that cyberattacks against the U.S. don't come only from China, the U.S. and Chinese defense ministers said they agreed Monday to work together on cyber issues to avoid miscalculations that could lead to ...
(AP) -- A European trade envoy said Chinese officials indicated Thursday that Beijing might change its curbs on exports of rare earths after a World Trade Organization panel rejected similar restrictions on other metals.
In the Colorado mountains, a spike in air pollution has been linked to a boom in oil and gas drilling. On the plains of north Texas, there's a drilling boom, too, but some air pollution levels have declined. Opponents of ...
(AP) -- The owner of a northeast Ohio well used to dispose of wastewater from oil and gas drilling plans to remove material from it to help lower its inner pressure following 11 minor earthquakes.