Threatened with the sudden and unexpected passage of a closely watched California bill designed to curb harmful tail-pipe emissions, automakers are regrouping and hope a last-ditch campaign can sway Gov. Gray Davis towards using his veto pen, according to a Detroit News story by Jeff Plungis. The bill authorizes the California Air Resources Board to issue regulations that would limit the amount of carbon dioxide emitted by highway vehicles beginning in 2009, a move the auto industry says will require more fuel-efficient cars and trucks. Automakers vow to continue a campaign to alert voters to the possible consequences of the legislation, including fewer vehicle choices. But environmentalists point to a Public Policy Institute of California poll released last week that indicates 62 percent of Californians believe that global warming is real and the government should take action to address it.