The film is online here:
http://www.vimeo.com/3800275
http://www.youtube.com/watch?v=kvUsSMa0nQU

The Other CO2 Problem is a clay animation about the potentially disastrous rise in ocean acidity. Created by pupils from Ridgeway School Plymouth, Sundog Media, and Dr Carol Turley of Plymouth Marine Laboratory. Commissioned by EPOCA [European Project on OCean Acidification]; supported by UCP Marjon, and National Marine Aquarium.