"The new chairman of the small but influential climate advocacy nonprofit 350.org is promising to keep fighting the proposed Keystone XL oil pipeline while expanding his activist group."

"The expected disappearance of the famed glaciers at Montana's Glacier National Park by 2030 could spell doom for a rare aquatic insect confined to high mountain streams that are warming due to climate change, U.S. scientists said on Thursday."

"The U.S. Environmental Protection Agency wants the federal appeals court in New Orleans to overturn an order that forces the EPA to decide whether federal rules are needed to curb the flow of pollutants into the Mississippi River. The pollutants ultimately feed a low-oxygen "dead zone" along Louisiana's coast each spring."

"Companies in drought areas have begun looking at liquefied petroleum gas gel for hydraulic fracturing as a way to reduce dependence on already-scarce water supplies."

"When Terry Rambler, the chairman of the San Carlos Apache Tribe, woke up Wednesday in Washington, D.C., it was to learn that Congress was deciding to give away a large part of his ancestral homeland to a foreign mining company."

"Singer Barbra Streisand took to Twitter Tuesday night to attack the Senate’s best-known climate change skeptic."

Development plans threaten the rim of the Grand Canyon.

A new study overturns conventional ideas about wolf management and predation.

"In a major bipartisan breakthrough, House and Senate lawmakers last night successfully attached a slew of public lands and energy bills to the defense authorization bill that Congress hopes to pass in the coming week."

"Federal regulators have been too slow and lax when it comes to ensuring the safety of California's last operating nuclear plant, according to Democratic Sen. Barbara Boxer, who clashed repeatedly with members of the Nuclear Regulatory Commission during a Senate committee hearing Wednesday."