"HOUSTON -- A Houston-based natural gas and oil drilling contractor pleaded guilty Tuesday to a negligent violation of the Clean Water Act in federal court in Muskogee, Oklahoma."

"U.S. lawmakers will urge Secretary of State Hillary Clinton on Friday to reject the proposed route of the Keystone XL oil sands pipeline, saying they are concerned the approval process has been tainted by alleged conflicts of interest."

"BP will be allowed to participate in an upcoming U.S. offshore oil and gas lease sale despite its role in the largest offshore oil spill in U.S. history, a top government regulator said on Thursday."

The Obama White House issued a strong statement Wednesday opposing a bill by Rep. David McKinley (R-WV) that would prevent the Environmental Protection Agency from regulating the disposal of coal ash. A 2008 failure of a TVA coal-ash in Kingston, Tennessee, caused major property and environmental damage. EPA administrator Lisa Jackson took office vowing to regulate coal-ash pollution, but has delayed action under White House and industry pressure.

"A nationwide poll conducted by Hart Research and GS Strategy Group, sponsored by Ceres .... found -- like so many polls before it -- that the public overwhelmingly supports clean air protections across demographic and party lines."

"When President Obama retreated from a tougher stance on smog last month, his Environmental Protection Agency chief had formally concluded that the existing standard endangered thousands of Americans, including children and people with respiratory ailments."

"The email from the American Chemistry Council took Gretchen Lee Salter's breath away. The ACC email that arrived Friday afternoon said there's no reason to worry about bisphenol-A (BPA) in baby bottles and children's sippy cups because the controversial plastic additive is no longer used in those products in the United States."

"NEW ORLEANS -- Federal regulators on Wednesday cited oil company BP PLC and two other companies – Transocean Ltd. and Halliburton – for alleged safety and environmental violations stemming from last year's rig explosion and massive Gulf oil spill.

The companies have 60 days to appeal the citations issued by the Interior Department's Bureau of Safety and Environmental Enforcement.

The bureau says the alleged regulatory violations could result in civil penalties once the appeal period has ended.

"The conservative nonprofit Americans for Prosperity unleashed a volley of ads aimed at Democrats in last year's midterm elections, but it recently reported to the IRS that it was not active in political campaign activities."

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"A subcommittee of the U.S. House of Representatives today considered a bill that would set new restrictions on the Equal Access to Justice Act, which allows nonprofit groups to recover attorneys fees in cases where they prove in court that the federal government is not following the law."