As part of the UN Conference on Sustainable Development (Rio+20) an enormous outdoor installation of fish was constructed using discarded plastic bottles on Botafogo beach in Rio de Janeiro, Brazil.

This another cool project based in London.

The sculpture will be displayed on the canal in the spring/summer 2012. Having the sculpture located near the Olympic locations will help to bring more attention towards environmental issues since all eyes will be on that area before and during the Olympics.