"The Confederated Tribes of the Umatilla Indian Reservation are leading the drive to push Oregon to adopt the nation’s strictest rules against toxic pollution of the state’s waters."

"A former top Pennsylvania official warned Maryland lawmakers to go slow in allowing drilling for natural gas in Marcellus shale deposits underlying the state's western mountains or risk the environmental and social problems his state is now experiencing from a poorly regulated wave of energy exploration."

"The EPA has proposed examining every aspect of hydraulic fracturing, from water withdrawals to waste disposal, according to a draft plan the agency released Tuesday."

"Chevron Corp.'s fight against plaintiffs seeking damages for crude oil pollution in Ecuador continued yesterday when the oil giant won a temporary restraining order against its opponents

"Virginia is about to limit state regulators' ability to protect public health and the environment from toxic discharges entering state waters from surface coal mines."

"The federal Environmental Protection Agency said Monday that it will review the consequences of large-scale development projects, such as the proposed copper and gold Pebble mine, in [Alaska's] Bristol Bay watershed."

"U.S. EPA has signaled that it won't reverse a George W. Bush-era policy that lets refineries burn some byproducts without treating them as toxic waste, drawing scorn from environmentalists, who had asked the incoming Obama administration to rethink the rule."

"Drilling service companies have injected at least 32 million gallons of diesel fuel underground as part of a controversial drilling technique, a Democratic congressional investigation has found."