The U.S. Environmental Protection Agency December 19 denied California\u2019s request for a federal Clean Air Act waiver, which would have allowed implementation of the state\u2019s 2002 tailpipe emissions reduction law--a measure the state wants to take to reduce global warming. The decision, which also impacts 15 other states\u2019 efforts to curb greenhouse gas emissions, was purportedly based on enactment that day of federal energy legislation. The new law sets a 35-mile per gallon vehicle standard beginning in 2020 and an ethanol supply target of 36 billion gallons. \u201cThe Bush Administration is moving forward with a clear national solution--not a confusing patchwork of state rules--to reduce America\u2019s climate footprint from vehicles,\u201d stated EPA Administrator Stephen Johnson. Senator Barbara Boxer (D-CA) said just after the waiver rejection was announced, \u201cI am prepared to take all measures to overturn this harmful decision.\u201d California Public Utilities Commission president Mike Peevey called the EPA\u2019s first waiver refusal to California in 30 years an \u201carrogant denial.\u201d In contrast, vehicle manufacturers and conservative organizations applauded the decision. \u201cCalifornia claimed that \u2018compelling and extraordinary\u2019 circumstances entitled it to a waiver, but global warming is hardly \u2018extraordinary\u2019 in California,\u201d stated Competitive Enterprise Institute general counsel Sam Kazman. \u201cIt\u2019s called global warming, not California warming.\u201d Enactment of California\u2019s vehicle tailpipe law, AB 1493, was seen as critical to meeting the state\u2019s 25 percent emissions reduction target under its climate protection law, AB 32. Cars and other vehicles are responsible for the greatest amounts of greenhouse gas emissions in the state. \u201cCalifornia will emit three times more global warming pollution per year by 2020 under the fuel economy standards singed into law,\u201d said Bernadette del Chiaro, Environment California clean energy advocate. \u201cThe energy bill does not reflect a vision, beyond 2020, to address climate change, while California\u2019s vehicle greenhouse gas standards are part of a carefully designed, comprehensive program to fight climate change through 2050,\u201d said Governor Arnold Schwarzenegger. He said the state will appeal the decision. \u201cI have no doubt that we will prevail because the law, science and the public\u2019s demand for leadership are on our side. Anything less than aggressive action is inexcusable,\u201d Schwarzenegger added.