Season 1Episode 758m
On Thin Ice
2011-12-078.8 rating
A look at how scientists measure changes in the polar regions and what those changes mean for the animals and people who live there, as well as the rest of the planet.
2011-12-078.8 rating
A look at how scientists measure changes in the polar regions and what those changes mean for the animals and people who live there, as well as the rest of the planet.