This is a beautiful sheet of 5 stamps, issued by Guinea-Bissau in 2010, depicting global warming by displaying animals. Featured on the sheet are global warming in the Arctic & Antarctica, the Arctic Hare, a melting iceberg, the Polar Bear, Gentoo Penguins, the Arctic mammal Muskox, and the Weddell Seal. The sheet is Michel catalog #4635-9, and is Post Office fresh, mint never hinged, and F/VF.