National (U.S.)

"Fishermen are gearing up and hunters are taking aim — for Marcellus Shale gas drilling."

"With a January deadline looming on a US law mandating energy efficiency standards for lightbulbs, some political forces don't want to turn out the lights."

"With trips that began two months after he took office, President Obama has devoted more than half of his out-of-town private-business visits to promoting a single industry: clean technology, which the president says will lead the nation back to economic prosperity."

"Natural gas companies have been placing enormous bets on the wells they are drilling, saying they will deliver big profits and provide a vast new source of energy for the United States. ... [But documents show industry analysts voicing] skepticism about lofty forecasts and question whether companies are intentionally, and even illegally, overstating the productivity of their wells and the size of their reserves."

"U.S. EPA warned of the potential dire consequences of legislation being fast-tracked through the House that would give states final say on rules concerning water, wetlands and mountaintop-removal mining."

"Three U.S. senators, alarmed by findings of an Associated Press investigation about aging-related problems at the nation’s nuclear power plants, are asking for a congressional investigation of safety standards and federal oversight at the facilities."

"Researchers report that certain bacteria convert BPA into compounds more deadly to fish than BPA itself."

"The U.S. Environmental Protection Agency released on Thursday the locations in five states where it will study the safety of a natural gas drilling technique some blame for polluting water."

"Like the vast African plains, two huge expanses of the North Pacific Ocean are major corridors of life, attracting an array of marine predators in predictable seasonal patterns, according to final results from the Census of Marine Life Tagging of Pacific Predators (TOPP) project published in the journal Nature."

"An internal investigation by the owner of the rig that exploded in the Gulf of Mexico last year has largely blamed BP for the disaster."