I suggest you watch this video without the soundtrack playing, for its artistic effect, which is extraordinary. Then have another view with the sound on. It turns out to be a piece related to dirty water killing people in the world. The only trouble is, the video is more impressive without the sound...and not for the reason the makers wanted. Yet another example in which art is best left to explain itself, perhaps.
I don't have anything against the message the makers want to spread; it's an exceptionally important one. I'm just not sure that the mix of message and art has quite worked. For me, anyway.