Warren Buffett on climate change: Friend or foe By: CNBC.com News March 19, 2015 at 09:00 AM EDT Warren Buffett receives plenty of press for renewable-energy investments, but is the revered investor really a climate change ally? It's complicated. Read More >> Related Stocks: American Electric Power Berkshire Hathaway BlackRock Consolidated Edison Duke Energy Entergy Corp Exelon Corp PacifiCorp 7.00 Preferred Stock