"In a lonely valley, deep in the mountains, a ranger watches over the last surviving grizzly bear. With the natural world exhausted and in tatters, Ben has dedicated himself to protecting this single fragment of the wild. One night, he hears voices in the valley--poachers, come to hunt his bear. A heart-pounding chase begins, crossing forests and mountainsides, passing centuries of human ruins. Sometimes hunter, sometimes prey--Ben must choose the...

Surviving Earth is an independent Australian documentary featuring insight from Professor Tim Flannery, Ian Dunlop, Professor Paul Ehrlich, permaculturalist David Holmgren, Aboriginal elder Uncle Bob Randall, Professor Ian Lowe, Major-General Michael Jeffery (retired), and Bindi Irwin. Topics include resource depletion, climate change adaptation/mitigation and overpopulation.

Written on Water focuses on the Ogallala Aquifer and examines the conflicts, politics, economics and groundwater depletion in the High Plains region. Farmers and communities survive on the precious waters of the aquifer, yet it is being depleted at alarming rates. Since the 1960s, advances in irrigation technology have allowed farmers to transform the "Great American Desert" into their own fertile agricultural oasis. The Ogallala supports over one-fifth...

Ahab Goldstein is a seventh-grader living in a United States (specifically Maine) where the environment has turned toxic, and the corrupt Environmental Police Force is in control, limiting access to natural resources like gas and water, issuing fines, and transporting "fragile" species (pretty much all of them) to the Center for Species Rehabilitation in New Arcadia (a dubious refuge at best); so when Ahab and his friends find a real live bullfrog...

When Belle Song accidentally discovers a rare and highly valuable mineral deposit near Mount Olympus on Mars, a huge mining company moves in to claim rights. But to mine the land, they put Mars' water supply at risk. Soon, protesters and company officials clash, and Belle and her friends learn about the complexities of protecting the environment.

Faced with extinction in many river systems of the West, a new genetic discovery could aid in the recovery of the chinook salmon population. This program examines the historical and ongoing causes of their depletion and their importance to the native peoples of the region. It also examines a recent scientific breakthrough that can turn the tide of their declining numbers and save this species from extinction.

The polar regions are being affected by global warming much more intensely than any other part of the world. The global mean temperature has risen around 1.1 degree Celsius since 1990, but in the Arctic it has risen more than twice that number. Global warming threatens to change that whole fragile ecosystem even faster than in the rest of the world. The situation is becoming more and more dramatic each year and we are approaching a point of no return....

"In a world ravaged by global warming, teenage Owen Parker discovers that he may be the descendant of a highly advanced, ancient race, with whose knowledge he may be able to save the earth from self-destruction"-- Provided by publisher.

Many marine mammals are harmed or critically injured by our trash in the oceans. Jalena found one place that's on a mission to save these creatures. The Marine Mammal Center in Northern California rescues seals, sea lions, porpoises, and other injured or sick mammals. Thanks to the dedication of hundreds of volunteers, they are healed, cured, rehabilitated, and returned to their native habitat. Some of the volunteers are concerned teens. Ever wonder...

Coral reefs have been on this planet for millions of years, but if climate trends continue this century could be their last. In a warming world, reefs and all the marine life they support are on the frontline. A change of just a few degrees can be the difference between life and death. This summer, large parts of the Great Barrier Reef saw the hottest sea temperatures and the most severe coral bleaching ever recorded. Before the next impact hits,...