10:10 is the citizen-led campaign to cut the UK's carbon emissions by ten per cent in 2010. Sign up to do your bit - if you keep this particular new year's resolution, you'll also find that you save money. This coming year, 10:10 is asking individuals, schools, hospitals and workplaces to cut the UK's carbon emissions by ten per cent. More than 51,000 individuals and several thousand businesses and organisations have already signed up. These include:

* city councils: Liverpool, Manchester, London and others
* more than 1200 schools and colleges
* businesses: among them Logica, O2, TMobile, Time Out Group, Walker Books
* Royal Mail, the Cabinet Office, boroughs and district councils

Cut your carbon footprint in 2010.