Ford and Chrysler today joined the U.S. Climate Action Partnership, a coalition of Fortune 500 companies and environmental groups calling on the federal government to impose limits on greenhouse gas emissions to fight global warming. With Ford (F) and Chrysler (DCX) joining General Motors (GM) in the coalition, Detroit now supports, officially anyway, quick Congressional action to reduce CO2 emissions. "We all recognize it is time for action," said Ford chief Alan Mulally in a statement. Apparently, though, it’s still not time for action to improve Ford’s vehicle fuel efficiency and reduce CO2 emissions from cars, one of the biggest contributors to global warming. Ford and the other automakers’ recent rearguard, and for once unsuccessful, efforts to quash legislation to raise fuel efficiency standards is causing a bit of cognitive dissonance with their move to adopt US CAP’s agenda. Greenwashing, anyone?