Royal Mail is the latest business to sign up to 10:10, a national climate change campaign aimed at reducing carbon emissions by 10% in the UK by 2010.

The campaign was launched on September 1 as the world’s leaders prepare for December’s climate changes talks in Copenhagen.

“Popularising immediate action against climate change is the only way we can make progress on this urgent issue,” said Fanny Armstrong, director of The Age of Stupid and founder of 10:10.

“Its ask is simple; make a few small changes in your home, business or policy which will have an immediate effect – not in five year’s time.”

Since its launch it has attracted 550 companies, 14,000 individuals, 150 schools and 250 other organisations, including hospitals and councils.

Royal Mail joins the likes of online food delivery company Ocado and several NHS trusts in pledging to cut their carbon emissions.

During the next 12 months, Royal Mail intends to introduce a raft of measures, including rolling out more double decker-delivery trucks, which enables more items to be carried per vehicle; improving route planning; and encouraging its staff to reduce their emissions at home, as well as at work.

• To find out more about the 10:10 campaign, visit www.1010uk.org