by Scott Horsley
… In 2008, the biggest difference between McCain’s plan to fight global warming and the Democrats’ plan was how much each side wanted to rein in greenhouse gases: 65 percent or 80 percent. To environmentalists, that now feels like the good old days.
“Everyone agreed the sun rose in the east and set in the west,” said Navin Nayak, senior vice president of the League of Conservation Voters. “Suddenly we emerge four years later, with a field of Republicans that are trying to tell us that the sun rises in the west, and we’re not sure if it sets.”
Some Republican White House hopefuls — notably Rep. Michele Bachmann of Minnesota — question the scientific consensus that greenhouse gases are likely a leading cause of climate change.