We can now add Apple to the list of companies bidding the Chamber of Commerce farewell over the group's obstruction on climate policy. This is the Chamber's highest-profile defection to date, and one that's guaranteed to keep the story percolating in the news a bit longer.

Score one more for the corporate responsibility crowd: Pacific Gas & Electric has up and left the U.S. Chamber of Commerce, citing “irreconcilable differences” with the business lobby’s climate policy.