Very creative and effective animation. It would have been neat to leave the area covered by water for a while, if only for dramtic effects.
It amazes me that even today, with so much evidence of the damage humanity has done to the environment, so many people reject climate change as a man-made thing and insist that it has always been like this and therefore we'll be fine no matter how much we polute.
I guess humans need to hit the wall head-on to believe there is a wall ahead.