" To achieve sustainable development and a higher quality of life for all people, states should reduce and eliminate unsustainable patterns of production and consumption..."
Principle 8, The Rio Declaration on Environment and Development, 1992
I found these great links on a wonderful blog entitled The Witches Kitchen.
Apart from the Greenpeace list, these are all Australian sites. Please do not disregard them if you are an overseas reader because they provide a lot of information about sustainability and ethical consuming.
The Ethical Consumer Guide - an Australian site with lots of information about the whys and hows of ethical shopping. With the big two Supermarkets behaving even more badly than usual, this site is a wonderful resource.
Australia's Sustainable Seafood Guide - This is exactly what the name suggests with an online tool to assist you in making more sustainable seafood choices and lots of interesting information and links.
Thanks for all the fish - An ABC Science feature.
Seafood Shopping Guide - A quick reference table of fish species and better choices from ABC Science
Greenpeace International Seafood Red List