Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest and coldest continent on Earth. This amazing, true-life tale is touched with humour and alive with thrills. Breathtaking photography captures the tr...

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

Record high oil prices, global warming, and an insatiable demand for energy: these issues define our generation. The film exposes shocking connections between the auto industry, the oil industry, and the government, while exploring alternative energies such as solar, wind, electricity, and non-food-based biofuels.

Norman is not just an admirer of nature, he's a part of it. He survives the harshness of the climate and the wildlife by coexisting with it. With his wife Nebraska, they live almost entirely off the land, making money by selling their furs.

This astounding documentary delves into the mysteries of the Tunguska event – one of the largest cosmic disasters in the history of civilisation. At 7.15 am, on 30th June 1908, a giant fireball, as bright the sun, exploded in the sky over Tunguska in central Siberia. Its force was equivalent to twenty million tonnes of TNT, and a thous...