Greenpeace Canada launched its sustainable seafood campaign last year and their goal was to convince Canada's supermarkets to take action against ocean destruction and overfishing by saying no to unsustainable seafood.

Some supermarkets are taking action while others are still lagging behind. They have recently released their seafood supermarket ranking.

Greenpeace’s 2009 Supermarket Ranking evaluates Canada’s eight major supermarkets on their progress in providing Canadians with seafood that is sustainably caught and farmed. You can see how they rank, what actions they have taken and where they fall short.

The selection of species found in retail markets comes with a high environmental cost. Not only are the waters over-fished, much of the fishing gear used to catch the seafood is destroying critical ocean ecosystems.

Greenpeace has developed a Redlist of seafood from fisheries or farming practices which are the most damaging and in need of immediate attention. There are 15 species on the Redlist.