10:10 Climate change campaign - the story so far

10:10 founder Franny Armstrong, documentary film-maker, at home in Camden, London
Photograph: Eamonn McCabe/Guardian

10:10 launch at Tate Modern, London
Photograph: Linda Nylind/Guardian

Ghana's education minister signed up on 18 March 2008
Photograph: 10:10

Tottenham Hotspur football club has increased recycling, cut bottled water and is encouraging use of public transport in its bid to cut carbon
Photograph: 10:10

Ten of the largest stations on London Underground joined the campaign on 10 June 2010
Photograph: 10:10

Royal Mail, with 176,000 staff, joined the campaign in 2009
Photograph: 10:10

Brighton & Hove council and locals celebrate joining the 10:10 campaign
Photograph: 10:10

The Isle of Wight festival took its low-carbon promise to the stage
Photograph: 10:10

Approaching the Arc de Triomphe, around the French 10:10 launch
Photograph: 10:10

UK government signs up to 10:10. British prime minister David Cameron and Chris Huhne, the secretary of state for energy and climate Change, during an address to Department Of Energy And Climate Change (DECC) staff on 14 May 2010 in London
Photograph: Oli Scarff/Getty Images