Once You Know

In 1962, Rachel Carson's book Silent Spring opened America's eyes to the dangers of pesticides and man's place in nature. This episode of the "Before/...

Professional snowboarder and mountaineer Jeremy Jones has an intimate relationship with the outdoors. It’s his escape, his identity, and his legacy. B...

In the same vein as Meri's other documentations, this one takes advantage of the glasnost policy to discuss the social and ecologic impact of the Rus...

In the heart of the Boreal forest lives a family renowned as much for their gourmet forest pickings as for their life of self-sufficiency.

As co-created by environmentalists Stephan Poulle and Nicolas Koutsikas, the documentary Gulf Stream and the Next Ice Age argues and provides evidence...

Tar Creek is an environmentally devastated area in northeastern Oklahoma with acidic creeks, stratospheric lead poisoning and enormous sinkholes. Near...

Dr Helen Czerski delves into the Horizon archive to chart the transformation of a little-known theory into one of the greatest scientific undertakings...

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

Professor Iain Stewart and Professor Kathy Sykes take a timely look at global warming, exploring the world's leading climate scientists' vision of the...

With a hybrid style blending political essay and road movie, this documentary by Santiago Bertolino takes us into the heart of the Amazonian reality....

A documentary about the impacts of climate change on the Republic of the Marshall Islands and its people. Most parts of the Marshall Islands are less...

An examination of the extinction threat faced by frogs, which have hopped on Earth for some 250 million years and are a crucial cog in the ecosystem....

Mariners Marsh, Bloomfield, Watchogue, Old Place. History, mythology, nature, anthropogenic industry, and digitally-demarcated landscape collide in th...

The Rapanui community on Easter Island fights to prevent an environmental collapse due to overwhelming tourism and industrial progress, and and to pre...

Born in London in 1934, Jane Goodall spent decades in Tanzania’s Gombe Stream National Park, studying the social and family structures of chimpanzees...