Joining Pacific Gas & Electric Co., two more utilities have decided not to renew their membership in the U.S. Chamber of Commerce, citing a dispute over the chamber's increasingly controversial stance on global warming.
Chicago-based Exelon and New Mexico-based PNM Resources Inc. both have stated their intention to leave the chamber, reports the New York Times.
This follows last week's decision by PG&E to leave the chamber. Nike also has expressed reservations about the chamber, which has threatened a lawsuit to challenge the science behind global warming.
Exelon CEO John Rowe said that "Inaction on climate is not an option."
"If Congress does not act, the EPA will, and the result will be more arbitrary, more expensive, and more uncertain for investors and the industry than a reasonable, market-based legislative solution," Rowe continued, reports the Times.