National Geographic Green Channel

Frogs are vanishing in America’s heartland. Canadian beluga whales are mysteriously dying in the Saint Lawrence River. Swarms of sea stars are overrunning parts of Australia's Great Barrier Reef. Has water become a massive delivery system for pollutants? National Geographic reveals signals that something is amiss in Earth’s water. Hosted by Edward Norton.

Massive volcanic eruptions can turn day into night, releasing the power of an atomic blast, spewing toxic avalanches of lava, gas, and ash. National Geographic transports you to some of the world's most notorious volcanoes, including Mount Pinatubo in the Philippines and Japan's Mount Unzen. Join volcanologists in their dangerous quest to forecast eruptions and save lives, putting you in the middle of the explosive excitement and human drama.

Around the world, from the forests of Venezuela to Yellowstone’s majestic wilderness to the Caribbean’s coral reefs, researchers are discovering predators play a vital role in the health of our natural systems. Knowing this, should we learn to live with predators? Can we? Join National Geographic to see how predators impact your life and discover why others think these animals are so vital. Hosted by Edward Norton.

Dust clouds are building high over the Atlantic. An entire population of caribou is declining, while other species are pushed to the limits of their physical survival in the oceans. A respiratory illness, once uncommon among children in Trinidad, is now widespread. From the Arctic north to the tropical isles of the Caribbean, scientists are documenting a series of perplexing phenomena many believe is linked to global climate change. Join actor Edward Norton to uncover the dramatic effects of a one-degree global temperature rise.

Across the world, plants and animals are silently finding their way into places where they don't belong. These interlopers, called invasive species, have enormous powers — they spread disease, they devour our buildings. Some are destroying the very land under our feet. Odds are these species that evolved in one place and now live destructively in another may have even infiltrated your own backyard. Join actor Edward Norton to uncover mysterious threats to the environment caused by invasive species.

National Geographic presents a story of competing interests, commerce, and conservation, arrogance and awe. It documents our temporary triumphs over nature, and shows how some solutions result in new problems. Above all, it’s a call to action for everyone.

North America's freshwater seas are jewels of the continent that have been squandered by decades of human abuse. Today, concerned groups attempt to repair past damage and confront new threats to these waters. Join National Geographic for a glimpse into this growing problem and learn about working solutions.