National (U.S.)

If stalemated budget talks lead to a federal government shutdown, one of the most visible impacts would be the closing of National Parks.

"Looking at total domestic production, renewable fuels pulled even with nuclear power in 2010, according to federal data. But nuclear still powers 20 percent of U.S. grid, while wind and solar are barely on the map."

"In case there was any doubt, the White House on Tuesday issued a formal statement opposing a bill now before the House that would bar the Environmental Protection Agency from regulating greenhouse gases for the purpose of combating climate change." The House could pass it as soon as Wednesday, April 6.

"Just when companies have finally stepped up hiring, rising oil prices are threatening to halt the U.S. economy's gains."

"Will the next Farm Bill, scheduled for passage in 2012, put public policy in service of a food system that works for farmers, eaters, and the environment?" Under the GOP's slash-and-burn budget assault, it is not currently looking that way.

"A Virginia state lawmaker caused a stir in February when he admitted that his resolution declaring U.S. EPA's effort to curb greenhouse gas emissions a 'regulatory train wreck' was written by the coal industry."

"The U.S. government lashed out at companies at the heart of last year's Gulf oil spill on Monday, denying reports it had negotiated a deal with BP to resume drilling."

"A year after the worst coal mining accident in decades took the lives of 29 workers, prompting urgent calls to revamp oversight of one of the country's most dangerous jobs, not much has changed in the lives of those who toil deep underground."

""U.S. water utilities have known about the prevalence of a likely carcinogen in water sources for seven years and have failed to share that information with the public, according to an advocacy group, which released today a 2004 industry study of hexavalent chromium."

Two employees of Transocean, owner of the rig that exploded, killed 11, and fouled the Gulf, are refusing to testify on the incident in a federal hearing. Transocean says it is powerless to make them do so. Citing a "best" year in safety despite the 11 deaths, Transocean awarded bonuses to executives.