Enrique Lopez-Tapia / Merchant ship in the Beagle Channel (named after visit of the HMS Beagle and Darwin) Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Merchant ship in the Beagle Channel (named after visit of the HMS Beagle and Darwin) Tierra del Fuego, Argentina

Michael Pitts / Engine room telegraph on the bridge of the wreck of the tanker 'Shinkoko Maru' Chuuk Lagoon, Federated States of Micronesia.

Michael Pitts / Engine room telegraph on the bridge of the wreck of the tanker 'Shinkoko Maru' Chuuk Lagoon, Federated States of Micronesia

Jack Dykinga / Steller sealions (Eumetopias jubatus) in sea off Douglas Chanel's coastal islands, British Columbia, Canada - an area threatened by oil carrying super-tankers

Merryn Thomas / Stern of tanker off Falmouth Harbour, Cornwall, UK

Dan Burton / Tankers at moorings on the River Fal, Cornwall. May 2009.

Benoit Stichelbaut / Tankers in port at Lorient, Morbihan, Brittany, France.

Philip Stephen / Tanker at sunrise on the North Sea, May 2010.

Philip Stephen / The "Jotun A" F.P.S.O. (floating production storage and offloading) ship, North Sea, May 2010.

Onne van der Wal / Ships at port, Valparaiso, Chile 2008.

Onne van der Wal / Ships off the coast of Valparaiso, Chile, 2008.