Mark Ruffalo Photo

From: Photo Flash: Mark Ruffalo, Scarlett Johansson, Chris Hemsworth Model Limited Edition Avengers Tees for Solutions Project

Earlier today, Mark Ruffalo called on Avengers co-stars Scarlett Johanssen and Chris Hemsworth to help model a series of limited edition t-shirts to benefit sustainability nonprofit, The Solutions Project. The Avengers stars are calling on their fans to also be heroes, buy a t-shirt, and help fund projects to accelerate the transition to clean energy and a sustainable future.