Supermodel Helena Christensen is to be the face of a campaign urging people to "do a good turn" and wash clothes in cold water to help save the environment.
Ms Christensen, in partnership with washing powder Ariel, is to feature in a TV advertisement urging a more environmentally friendly approach to using the washing machine.
"Simply switching the dial on your washing machine . . . can save up to 40 per cent of the energy used in each load," Christensen, a keen environmentalist, says.