"U.S. environmental regulators said on Tuesday the climate and energy bill in the Senate would only add slightly to average household costs, but the finding was not expected to boost chances for the legislation that would cap greenhouse gas emissions."

"A competition between nuclear waste dumps has pulled the Nuclear Regulatory Commission into an unusual reconsideration of its rules to allow moderately radioactive materials to be diluted into a milder category that is easier to bury."

"It is an overlooked danger in oil spill crisis: The crude gushing from the well contains vast amounts of natural gas that could pose a serious threat to the Gulf of Mexico's fragile ecosystem."

"Nearly 30 members of the congressional committees overseeing oil and gas companies held personal assets in the industry totaling $9 million to $14.5 million late last year. That included at least $400,000 in the three companies at the heart of the Gulf of Mexico oil-drilling disaster, according to a Washington Post analysis of financial disclosure forms released Wednesday."

Rep. Joe Barton (R-TX) turned a hearing with BP CEO Tony Hayward on its head Thursday by apologizing to BP for what he called a "$20 billion shakedown." Democrats made political hay. Republicans scrambled to distance themselves. Under threat from GOP leaders of losing his job as top House Energy Republican, Barton returned to the hearing to apologize for apologizing. It later emerged that Barton's "shakedown" talking point had been crafted by the Republican Study Committee, a conservative faction that includes 115 of the 178 GOP House members. Barton got more than $100,000 in campaign contributions from the oil industry during this election cycle -- and his top single corporate contributor is Anadarko, which is a 25% stakeholder in the gushing Macondo well. Hayward, while apologetic himself, dodged the panel's questions.

"Elected officials should consider imposing ethics rules on oil and gas companies that do business with the federal government, the Interior Department's acting inspector general plans to tell the House Natural Resources Committee on Thursday."

"As arguments rage over how to clean up the Deepwater Horizon oil spill, an examination of toxicity tests reveals flaws in the data used to determine the safety of dispersants."

"Kenneth R. Feinberg ... . named Wednesday by President Obama as the independent administrator of a $20 billion fund set up by BP to compensate victims of the oil spill in the Gulf of Mexico, may not have the powers of a king. But he does seem to specialize in Solomon-like decisions."