His new film, Racing Extinction will be aired on the Discovery Channel in 220 countries and territories in December.
He infiltrates black markets in China, revealing shocking images of thousands of dead animals for sale — manta rays, whale sharks, and piles of shark fins. the film's targets are overfishing, wildlife poaching, and a climate warmed by carbon emissions.
As frightening as the film's message is, Psihoyos says there's reason to be hopeful.
"When we started The Cove, they were killing 23,000 dolphins a year.Now they're killing less than 6,000. Change can happen, and it can happen almost overnight."
Read an interview with the director: www.mensjournal.com/magazine/louie-psihoyos-witness-to-extinction
Official film website: racingextinction.com