The ACT ON CO2 calculator - which helps people to work out and reduce their carbon footprint - has received its one millionth unique visitor, the Department for Environment, Food and Rural Affairs announced today.

The calculator, which was launched last Summer, enables people to reliably calculate their carbon footprint from home energy, appliances and transport. It then develops a personalised action plan for users, with practical steps they can take to cut their emissions.

Climate Change Minister, Joan Ruddock, said: "A significant part of the fight against climate change is about the action we can take as individuals. On World Environment Day it is really encouraging that so many people are deciding to Act on CO2 to help the environment. Our calculator, http://www.direct.gov.uk/actonco2 , has received a million visitors in a year."