Buried in this New York Times story, "In Big Buyout, Utility to Limit New Coal Plants", we have this gem.  

People involved in the negotiations said that Goldman Sachs, an adviser and lender to the buyers, helped broker peace with environmental groups and sought their support for the transaction. Goldman Sachs has been one of the most aggressive firms on Wall Street about taking action on climate change; the company sends its bankers home at night in hybrid limousines. [emphasis added]