A new congressional report has determined Vice President Cheney’s office and the oil industry blocked efforts by the Environmental Protection Agency to rule that greenhouse gases should be regulated under clear air laws. The report says that there was wide senior-level support at the EPA for concluding that greenhouse gases are a danger to the public and that the EPA should regulate emissions. But the EPA ignored its own senior-level staff after concerns were raised by Cheney’s energy adviser, F. Chase Hutto, along with unidentified individuals from ExxonMobil and the American Petroleum Institute.