Watch climate change: a horizon guide HDtoday. Dr Helen Czerski delves into the Horizon archive to chart the transformation of a little-known theory into one of the greatest scientific undertakings in history.
02019HD
Two Canadian experts in underwater filming, Mario Cyr and Jill Heinerth, join forces for the first time to record how Arctic wildlife is adapting to...
7.52016HD
Near the cold Pyrenees of Iberia, surrounded by ancient and dark green forests, lies a strange land where the rain is scarce and the wind is always...
02022HD
5.22010HD
This 90-minute documentary brings to life Gavin Pretor-Pinney’s international bestseller, “The Cloudspotter’s Guide”, which...
72020HD
The wildlife of the tundra on Alaska's north coast is particularly threatened by climate change.
6.62007HD
This film tries to blow the whistle on what it calls the biggest swindle in modern history: 'Man Made Global Warming'. Watch this film and make up...
02015HD
Documentary about human impact on the world.
02025HD
Off The Mark is a documentary about a world-first dog sled expedition in Finnmark, Norway, in the middle of the polar night in search of...
02017HD
We're entering the Earth's sixth era of extinction -- and it's the first time humans are to blame. CNN introduces you to the key species and people...
02019HD
Increasing pollution, over fishing and climate change are major threats our oceans are currently facing worldwide. This documentary follows us on our...
8.72008HD
The Hobbit Enigma examines one of the greatest controversies in science today: what did scientists find when they uncovered the tiny, human-like...
02011HD