In Rio de Janeiro, where world leaders are meeting for the UN Conference on Sustainable Development (Rio+20), two gigantic fish are rising from Botafogo Beach. The public art installation has been created entirely from discarded plastic bottles collected on and around the beach.
By day, the plastic sculptures shimmer in the sun, against the gorgeous backdrop of Rio's mountains. By night, the big fish are illuminated by LED lights from within, glowing purple and blue in the evening air.
The stunning sculpture carries messages about both the importance of recycling and the problem of plastic pollution in our seas. See a bunch more pics at this Rio+20 Flickr set.