CNN Heroes: Looking back at Robert Redford’s legacy and his fight to protect the planet

Acclaimed actor and director Robert Redford was one of the first celebrities to use his platform to draw attention to environmental issues in the 1970s. For more than four decades, he advocated to preserve the earth’s natural resources and protect the planet from climate change. He is this year’s CNN Heroes Legacy Award honoree, introduced by Meryl Streep. 6:20 • Source: CNN