When eco-corruption riddles the planet, it's up to environmental crime fighters -- from pros to ordinary citizens -- to stop the wrongdoing before ecosystems and species are destroyed. Join filmmaker Rob Stewart in Sharkwater, a visually stunning adventure around the world's oceans to save a majestic species, and then discover other incredible acts to stop eco-infractions in their tracks.

A High-Definition Journey, Saturday at 10 pm Sharkwater: A Mission To Save The World's Most Amazing Predator Follow filmmaker Rob Stewart as he discovers how these magnificent creatures have gone from predator to prey, and how despite surviving the earth's history of mass extinctions, they could easily be wiped out within a few years due to human greed. In an effort to protect sharks, Stewart teams up with renegade conservationist Paul Watson of the Sea Shepherd Conservation Society to battle shark poachers in Guatemala, resulting in unbelievable corruption and danger. Don't miss Sharkwater on Planet Green, Saturday at 10 pm and catch tweeting from marine experts during the Sharkwater premiere: follow @PlanetGreen and get behind-the-scenes info. Watch The Amazing Trailer For Sharkwater Explore Other Ocean Issues With Blue August

Catch Crime In The Coastwatch Season Finale Tonight At 8 pm (Video)

Pittsburgh Stands Up Against Fracking

The Uphill Battle To Save Our Shores

EPA Cracks Down On Mercury Emissions

Oceana Sets Sail And Reports From The Gulf (Video)

Cities Ban Plastic Bags

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