Turning Trash Into Treasure: These Energy Stocks Are Betting Big on Converting Garbage Into Gas (and Cash)

These energy companies are investing heavily in building renewable natural gas platforms. Landfills are major greenhouse gas emitters. They're the third-largest source of U.S. greenhouse gas emissions, accounting for 14.4% of the total. Landfills produce carbon dioxide and methane gas. Methane is the more dangerous contributor to global warming. It's 28 times more effective at trapping heat in the atmosphere than carbon dioxide. While methane gas is harmful to the environment when emitted, it's much less da ...