The organization announced Monday that the two actors will be honored at its 23rd annual Environmental Media Awards this fall.
Damon will receive the Ongoing Commitment Award for his work with Water.org, the organization he co-founded that aims to bring safe water and sanitation to people around the world.
Panettiere will accept the Futures Award, which recognizes younger entertainers for their potential to be environmental activists. The “Nashville” star is active with the Whaleman Foundation, an oceanic research and conservation group.
The awards will be presented at a ceremony on Oct. 19 at Warner Bros. studios in Burbank, California