Shot at Merlin Entertainments' Sea Life London Aquarium, the photo marked the 100th day until the Copenhagen Climate Change Summit, and features a family playing out a scene from normal life at the ‘bottom of the sea' surrounded by sharks, turtles, stingrays and tropical fish to illustrate the dramatic rise in sea levels.
Oxfam will use the image to urge world leaders to deliver a deal in December that will save people from the impact of climate change.
"This light-hearted photo sends a very serious message - it is time for politicians to act in Copenhagen if we are to avoid catastrophic climate change," said Oxfam's chief executive Barbara Stocking.
The merged company now works across a wide portfolio of sectors including film, consumer products and charity delivering joint event and PR strategies.
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