"New Jersey Governor Chris Christie is re-evaluating the state's participation in a regional carbon trading program and could opt to withdraw within a few weeks. Observers say the move is expected in response to pressure from GOP legislators and campaigns mounted by groups funded by billionaires Charles G. and David H. Koch."

"Firefighters battled Monday to contain several large blazes that have burned hundreds of square miles of rural Texas and destroyed dozens of homes since last week, getting reinforcements from out of state as they struggled against some of the worst wildfire conditions in state history."

"Indoor marijuana cultivation consumes enough electricity to power 2 million average-sized U.S. homes, which corresponds to about 1 percent of national power consumption, according to a study by a staff scientist at the Lawrence Berkeley National Laboratory."

"Two areas of Alaska's Cook Inlet will be designated as critical habitat for the endangered Cook Inlet beluga whale, NOAA's Fisheries Service, Alaska Regional Office announced [April 8]."

"This country’s battle to curb oil imports is being plotted in high-tech laboratories and elite universities hunting for breakthroughs in alternative fuels. But the frontlines in the effort to bring such fuels to market can be found in places like a working-class neighborhood in this river town, not far from where Pony Express riders saddled up to journey west."

"The Goldman Environmental Foundation today announced the six recipients of the 2011 Goldman Environmental Prize - a group of grassroots leaders who are taking on tough challenges to protect the environment and their communities, often at great personal risk."

"A federal judge on Saturday rejected a plan negotiated between the government and wildlife advocates to remove most wolves in the Northern Rockies from the Endangered Species List."

"Extracting natural gas from shale formations using hydraulic fracturing generates more greenhouse-gas emissions than burning coal, according to a new study that drew immediate attacks from oil and gas interests already facing pressure from lawmakers and regulators worried about the environmental effects of shale-gas development."

"Japan has raised its assessment of the accident at the crippled Fukushima Daiichi nuclear power plant to the worst rating on an international scale, putting the disaster on par with the 1986 Chernobyl explosion, the Japanese nuclear regulatory agency said on Tuesday."

"Dozens of large-scale clean energy projects could be derailed if a measure to defund a federal loan guarantee program becomes part of a final Congressional budget deal."