Mike Read / Blackish oystercatcher (Haematopus ater) sitting on nest, Falkland Islands

Mike Read / South island oystercatcher (Haematopus finschi) standing on one leg on shoreline, South Island, New Zealand, December

Bernard Castelein / Common Eider (Somateria mollissima) female with chicks on beach, Helgoland, Germany, May

Juergen Freund / Restorff Island, the daily dive stop for lunch and dive surface interval at Walindi Plantation Resort. Papua New Guinea, May 2010

Juergen Freund / Aerial view of a dead hardwood tree by the sea. These trees once grew further inland in coastal lowland forest but are now on the coast as a result of rising sea levels, Philippines, May 2009.

Roberto Rinaldi / White Bay, Jost Van Dyke Island, British Virgin Islands (BVI)

Roberto Rinaldi / Palm trees on a deserted sandy beach with mountain beyond, Bora Bora, French Polynesia.

Roberto Rinaldi / Bora Bora Pearl Resort on the Bora Bora lagoon, French Polynesia.

Roberto Rinaldi / Beach close to Colonia on Yap Proper, Micronesia.

Roberto Rinaldi / White Bay on Jost Van Dyke Island (JV Dyke), also known as Barefoot Island, British Virgin Islands (BVI)

Bernard Castelein / North Berwick beach at low tide with seaweeds. Scotland UK. Bass rock in background.