More Ice (Dupe from Specials) Modern Marvels : Season 18 Episode 99

It traps a treasure of energy on the ocean floor, and confounds scientists still trying to solve why it’s so slippery. We’ll venture inside NASA’s Icing Research Tunnel in Ohio, and then it’s off to Salt Lake City’s Olympic Oval which boasts “the fastest ice on Earth.” Dive to the ocean floor to collect and analyze a unique form of ice called methane clathrates–cages of ice encasing pressurized natural gas. Scientists believe that if only one percent of the world’s ice-entrapped methane could be harvested, it would more than double our current supply of natural gas. Other highlights include the search for extraterrestrial ice and a trip inside the studio of a chainsaw-wielding artist as he sculpts a masterpiece.