Frozen Worlds

For the last few days I've been watching Frozen Worlds, the second episode of a UK nature documentary narrated by David Attenborough titled Our Planet. Here's the description of this episode from Wikipedia ...

Gentoo penguins climb to the top of a rocky outcrop to lay their eggs. Beneath the melting sea ice, trillions of Antarctic krill graze upon algae. The penguins and several humpback whales gather in large groups to feed on the abundant krill. A pod of orcas arrive and hunt the penguins. On the island of South Georgia, wandering albatrosses raise their chicks. Leopard seals stay the winter in the warmer waters of South Georgia to hunt king penguins out to find food for their chicks. Two male southern elephant seals fight over dominance. Far north in Svalbard, the impact climate change has on polar bear's hunting habits is shown, as ringed seals use dens less often, removing the bears' advantage of ambush. During summertime in the Canadian Arctic, narwhals wait for a crack in the ice to hide from predators in a shallow bay. Over a hundred thousand walruses have hauled out on a beach in the Russian Far East due to much of the sea ice having melted. Some of the walruses manage to scale the high cliffs, but many fall to their deaths.

It's pretty amazing. Sad too, because it shows the devastating effect climate change, caused by us, is having on other species. Whatever few creatures are still extant by the time we humans eventually kill ourselves off (nope, we aren't escaping to Mars), will doubtless breathe a sigh of relief that we are finally gone.