NOVA: Extreme Ice

The apparent acceleration in the melting of glaciers and ice sheets is documented through the efforts of photojournalist James Balog, who places time-lapse cameras in 26 alpine and arctic locations, including Alaska and Greenland. The long-term consequences of the melt: sea levels would rise by some 200 feet and force massive numbers of people -- from Bangladesh to Florida -- to move inland. Includes interviews with scientists Richard Alley (Penn State), Tad Pfeffer (UC-Boulder), and Jim White (UC-Boulder).