Brazil 2012 Rio +20 UN Conference on Sustainable Development

As host of the Rio +20, the UN Conference on Sustainable Development, Brazil issued on 1 June a souvenir sheet, a postcard, and a sheetlet of 24 stamps, shown above, to mark the event. The last stamp on the sheetlet, at the bottom right corner, probably depicting eco-tourism, features a scuba diver facing off a whale.