We need plankton so badly. Not only is it the basis of the food chain in the ocean but it also provides us with much of the oxygen we breathe as well as sucking up lots of the carbon we keep producing. But like many things it is under threat. This poster was produced for the 2012 general election campaign in New Zealand. This is the first time it's being offered for sale. There are 50 signed copies printed at A1 size (594 x 841mm) on 200gsm satin paper and all are signed by the artist.