PG&E Corp. is leaving the U.S. Chamber of Commerce over objections to what its top executive called the chamber's "extreme position on climate change," CNN reported.

In a letter to the U.S. Chamber published on PG&E's blog, PG& E Chairman and Chief Executive Peter Darbee cited "fundamental differences" over climate change to explain why the company is pulling out of the organization, despite the Chamber's "long history as a positive force for America's businesses and its economy."

Click to see the letter here.