Harp seals use sea ice as their chilly love nests, and after the lovin' leads to babies, parents nurse for just 12 days before the pups are on their own. But their ice dens have been melting beneath the baby seals, and when that happens, their chances of survival are slim.
When you think of Facebook you don't exactly think 'environmentally friendly'. All those data centres burning through electricity, powering your virtual social lives. Facebook's first push out of the US might be a tad kinder to the environment, using Arctic cooling.