Posted 4/11/13 11:15 am EST by Danica Davidson in Celebs, Eco-Friendly, Green, Sweet Tweet Mark Ruffalo knows that fracking has got to go, but instead of going into angry Hulk-Smash mode against pro-frackers, he’s co-narrated a documentary on the dangers of fracking. “Marvel’s The Avengers” and Mark are nominated for multiple 2013 MTV Movie Awardsthis Sunday, and while this doc […]