National (U.S.)

"You wouldn't know it from campaign rhetoric, but gasoline prices have been trending down."

"A Fox TV commentator, midgame, links global warming to home runs, and fans on all sides of the climate debate call foul."

"A report issued on Monday by the National Wildlife Federation asserts that federal laws regulating oil pipelines are inadequate in several crucial areas and that local regulations do not provide sufficient protection against safety and environmental risks."

"WASHINGTON -- Biotechnology's promise to feed the world did not anticipate 'Trojan corn,' 'super weeds' and the disappearance of monarch butterflies."

"A regional Environmental Protection Agency chief based in Dallas resigned on Monday, days after Republican lawmakers uncovered comments in which he compared his enforcement of energy companies with crucifixion."

"Climate scientists at the Harvard School of Engineering and Applied Sciences (SEAS) have discovered that particulate pollution in the late 20th century created a "warming hole" over the eastern United States-that is, a cold patch where the effects of global warming were temporarily obscured."

"Get ready for the heat. Scientists at Stanford University in California and Purdue University in Indiana say global warming is going to hit hard in Corn Belt states where it most matters -- the corn market. The study, financed by the U.S. Department of Energy, says that the corn market will be walloped in the coming years by climate change."

"They say oil and water don't mix, but when it comes to oil and gas drilling, water and oil are practically joined at the hip. It takes millions of gallons of water to drill a well. Water is the 'hydraulic' in the hydraulic fracturing process used to release oil and gas deposits. Disposing of wastewater is a costly challenge for drillers. And, at every step along the way, preventing groundwater contamination is the paramount concern for inspectors and regulators."

The US Agriculture Department's Wildlife Services agency, at farmer request, kills predators that may harm farm animals. But critics say it does serious harm to non-target species and uses needlessly cruel and indiscriminate methods.

"Federal officials have been quick to reassure the public that there is no health threat from the mad cow disease discovered in the carcass of a Tulare County dairy cow. But there is a lot they don't know about the type of infection in that carcass -- including how the cow got the disease, how long it was ill, and the risk to the public if that strain gets into the food supply."