Meltdown - DVD

National Geographic separates fact from fiction to discover the real science behind climate change, the melting ice caps and why the intensity of tropical storms has increased by 50% in the past 30 years.

Historic snows and bitter cold across North America. Massive floods in Australia and Pakistan. Deadly mudslides in Brazil. Epic drought and wildfires in Russia. 2010 was one of the most destructive years in history. National Geographic presents the dramatic images of this catastrophic weather year -- and introduces the people who risked their lives to capture them on film.

The idea that a building's walls will stand up seems as safe a bet as gravity's pull or the sun's rising. Most of us don't worry much about whether our apartments, offices, supermarkets, or schools are going to collapse on us as we go about our daily routines. But should we? National Geographic takes a look at buildings around the world that despite having appeared structurally sound, some for years on end, came crashing down in a momen