Chasing Ice (2012)

I first saw this at my city's International Film Festival, then later thankfully I was able to watch it with my son, who was 9 at the time, when at a friend's place for one of the big 3 holidays, it was on Netflix. Brilliantly conceived and carried out, over a long stretch of time, by the filmmakers, it led to a fine father-son discussion about the environment, its importance, what is wrong with it and what can be done to improve things on Earth. Its importance is inestimable, and I highly recommend it to everyone. It is something everybody needs to see, think about and actively discuss, regardless of one's personal priorities or political sphere of influence.