In the run up to the historic climate negotiations between global leaders in Copenhagen, this special episode of The United Nations - 21st Century captures the human side of the...

(Earth Focus: Episode 16) This Earth Focus special features award-winning filmmakers Marilyn and Hal Weiner as they share the experience of making their series "Journey to Planet Earth." Watch excerpts of...

Pucarumi lies at the foot of the Ausangate glacier in the uplands of Peru. Here, herders rely on pastures fed by glacier melt to feed their animals and irrigate...

Join Charles Annenberg Weingarten on this unforgettable journey through the Arctic to meet the region's people, understand their culture, and explore how their fragile ecosystem and time-honored way of life...