Not available in the US
The rights holder only offers this film free in the UK.
Polar Extremes: Ice Worlds
20201h 53m
Palaeontologist Kirk Johnson takes a two-hour journey through the deep history — and the possible future — of ice at the Earth's poles. This 2020 NOVA special is built for a general audience.
Hosted on YouTube by NOVA PBS
Watch on YouTube Last checked 14 Nov 2026
