National Geographics Polar Explorations

Diving under Polar Ice (1x16)

Date de diffusion: Mar 06, 2015

How do humans get beneath the surface of Arctic ice or the Antarctic Ocean? Join marine conservationist Sylvia Earle, a National Geographic Explorer-in-Residence, as she explains the technologies scientists use to dive safely beneath the sea ice in an effort to expand our knowledge of marine ecosystems at both poles.