CEOs no longer refute global warming

Members of the Business Council, a group of executives from the top 120 U.S. companies, have altered their beliefs about climate change significantly, said PG&E Chief Executive Officer Peter Darbee in an interview.

Darbee was attending the Business Council's October gathering in Cary, North Carolina.

"No one among the group was arguing the science of climate change," said Darbee. "That debate, at least in that forum, appears to be over. The discussion was really about, 'climate change is happening, it is a challenge of vast proportions and it will require an effort on the part of mankind to respond to this challenge.'"

Darbee also said a tangled web of state and federal laws governing energy use and conservation was delaying action.

"The greatest challenge we face getting our business done is the unintentional gauntlet of government regulation," he said. "What renewable energy developers have to go through — the hoops and hoops and hoops."