Just about everything about this is fake. First of all they just decked out a barge with white and stuck a piano on it. They mixed in the amplified sound of ice falling. The environmental claim is that the Arctic ice is disappearing. In fact, not too long ago people were claiming that by now there would be a permanent passage through the Arctic year-round. If you do an internet search you will encounter hundreds and hundreds of articles stating that climate change is affecting the Arctic in important ways. You have to dig around a bit, but the reality seems to be that the amount of Arctic sea ice has remained very stable over the last decade at least. The public seems to be seeing through the hysteria as the percent that report that they believe that climate change is an important issue seems to fall lower and lower every year. This is despite a constant hectoring campaign supported by government and media going back decades.
Oh, and the music? Good grief, if I thought that this was all you needed to do to be a famous musician, I think I would have gone into carpentry or small appliance repair instead. Dreary tinkling over a hackneyed chord progression for a couple of minutes? Mind you, this is exactly the kind of music you would expect to find in a context that is primarily ideological.
As Brahms said once on leaving a party, "If there is anyone here whom I have not insulted, I beg his pardon." So please weigh in in the comments about my grievous errors!