Everyone loves those Planet Earth shows, since they're exceptionally shot and capture moments in nature that otherwise would remain unseen, and the latest series Frozen Planet is probably no exception, especially if you like penguins and polar bears. However, when Frozen Planet airs in America on the Discovery Channel in early 2012, it will be one episode shorter than the version shown on the BBC. Why? Because climate change is controversial:

The final episode of Frozen Planet — the popular new series from the creators of Planet Earth — addresses the impending threat of climate change on the Earth's poles. In the episode, which will air on BBC One on December 7th, narrator David Attenborough is expected to claim that the Arctic could be completely devoid of ice by 2020.

But in the US, the episode will not air, for fear of the reaction it might draw from America's climate change skeptics. In fact, as of mid-November, the BBC had sold the documentary series to over 30 foreign networks, and a third of them had opted out of the controversial final episode.

Maybe Attenborough's view of the threat of global climate change is offbase, maybe we'll be fine without changing our behavior one bit, but is the very idea so offensive that the series needs to be shortened? That seems ridiculous, to say the least.