Greenwire

Environmental groups and state officials are fighting over the completion of a massive sewer system project in the Florida Keys.

A head-on collision of two freight trains in northeast Arkansas yesterday killed two Union Pacific train crew members and injured two others.

Letters sent by Pacific Gas and Electric Co. and the California Public Utilities Commission inviting the nation's top transportation safety official to a state-sponsored natural gas safety conference used nearly identical language, showing the close ties between the utility and the group that regulates it.

Recycled car batteries could solve a key barrier for a solar cell technology captivating the industry because it is inexpensive but rivals commercial power production, researchers at the Massachusetts Institute of Technology announced today.

A Department of Energy report out today suggests the wind industry is on an upward trajectory thanks to last year's brief renewal of a key tax credit -- and the likelihood it could continue to thrive thanks to a combination of technological improvements and the effect of U.S. EPA rules on power plant emissions, among other factors.

The Interior Department late last week announced plans to update 20-year-old regulations that ensure taxpayers are not left on the hook for the cost of tearing down abandoned offshore oil and gas facilities.

The Interior Department last week advanced long-awaited draft regulations that will dictate how companies may explore for oil and gas in the remote waters north of Alaska.

Exide Technologies, the operator of a troubled battery-recycling plant in Vernon, Calif., disclosed in regulatory documents last week that a federal grand jury is investigating the firm.

A Wyoming man pleaded guilty in federal court last week to stealing more than 500 pounds of explosives belonging to the Forest Service, saying he wanted to see what would happen if he took the property.

A Colorado guide pleaded guilty Friday to organizing illegal big-game hunts, where he would trap or injure mountain lions and bobcats to make it easier for clients to shoot them.

Cause of Action, a conservative-leaning watchdog group, sued a dozen federal agencies today for being slow to disclose White House records under the Freedom of Information Act (FOIA).

The Maryland Department of Natural Resources is trying a new tactic to fight the spread of invasive fish in the state's waterways: eating through them.

A Polish artist attempting to draw attention to the dangers faced by marine species could face charges after killing marine life in a protected area near Cancun, Mexico.

Drought-stricken cemeteries in California are finding creative ways to save water.

Rescue crews on Saturday pulled the body of a Georgia man missing for more than a week from a Yellowstone National Park river.

A Nevada wind farm has been forced to make changes after killing more bats than allowed under a deal with the federal government.

One bird is scorched while flying above BrightSource Energy Inc.'s Ivanpah solar power plant in the California desert about every two minutes, and Fish and Wildlife Service investigators are pushing state regulators to slow the company's expansion plans until they can learn more about what is killing the birds.

Scientists are urging governments and industry to compromise more as they balance development of roads and bridges through sensitive wildlife areas in tropical and subtropical countries.

The Fish and Wildlife Service has decided that protection might be needed for a butterfly in Washington state and plans to begin the 12-month review of a possible Endangered Species Act listing when "resources become available."

A coalition of conservation groups today urged the Interior and Agriculture departments to revise a plan for managing greater sage grouse in central Wyoming, arguing that the plan unveiled in June fails to follow the best available science.

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