Critical Mass(2013)

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

A decade after An Inconvenient Truth brought climate change into the heart of popular culture comes the riveting and rousing follow-up that shows just how close we are to a real energy revolution. Vice President Al Gore continues his tireless fight, traveling around the world training an army of climate champions and influencing international climate policy. Cameras follow him behind the scenes—in moments private and public, funny and poignant—as he pursues the empowering notion that while the stakes have never been higher, the perils of climate change can be overcome with human ingenuity and passion.

Violent squalls, hail, waterspouts, lightning... storms put animals and plants to the test. At a time when climate change is multiplying extreme weather events, this documentary plunges into the heart of a storm, from the heavy, dry atmosphere that precedes it to the deluge that follows.

Ben Fogle spends a week living inside the Chernobyl Exclusion Zone, gaining privileged access to the doomed Control Room 4 where the disaster first began to unfold.

Offshore wind farms are a major player in the move away from fossil fuels, especially in the North Sea, and they are increasing in number. But their impact on the environment is not yet clear: We take a look at ongoing research in Europe that is measuring the impact of wind turbines and their harm, or benefit, to biodiversity in our seas.

Earth's environmental crisis--brought about by uncontrolled technological progress--is endangering life on a global scale. At the core of the threats to the planet - wars, overpopulation, pollution, and the depletion of natural resources - is the inadequacy of the nation state to come to terms with the surmounting problems of twentieth century living. What is urgently needed is the kind of international cooperation where nation states relinquish part of their sovereignty to a world body entrusted with the management of mankind's future.

For generations, fishermen have made their home on Tangier Island, in the heart of the Chesapeake Bay on the east coast of the US. Two-thirds of the island has disappeared over the last 150 years, and local people are concerned about rising sea levels—and the lack of progress on reinforcing the sea wall—but the church remains the bedrock of this small, close-knit community.

David Attenborough and scientist Johan Rockström examine Earth's biodiversity collapse and how this crisis can still be averted.

In the cobalt mining areas of Katanga in the Democratic Republic of the Congo (DRC), babies are being born with horrific birth defects. Scientists and doctors are finding increasing evidence of environmental pollution from industrial mining which, they believe, may be the cause of a range of malformations from cleft palate to some so serious the baby is stillborn. More than 60% of the world’s reserves of cobalt are in the DRC and this mineral is essential for the production of electric car batteries, which may be the key to reducing carbon emissions and to slowing climate change. In The Cost of Cobalt we meet the doctors treating the children affected and the scientists who are measuring the pollution. Cobalt may be part of the global solution to climate change, but is it right that Congo’s next generation pay the price with their health? Many are hoping that the more the world understands their plight, the more pressure will be put on the industry here to clean up its act.