Christian Aid is organising Britain's largest-ever march this summer to demand cuts in the pollution that is creating climate chaos.

The 1000-mile, 11-week Cut The Carbon march will run through all the UK's capitals, as marchers will call on the Government to reduce emissions of carbon by five per cent a year to help protect the world from the storms, floods and droughts threatened by global warming.

"Climate change is the most serious threat to the future of all of us, but the shocking truth is that it's poor people in the developing world who are already on the front line," said Paul Brannen, head of campaigns at Christian Aid. "We have a moral duty to stop this now and where better to start than at home."

Christian Aid hopes that the Cut The Carbon march will have an impact similar to the Make Poverty History demonstration in Edinburgh in 2005.

The protest will start in Belfast on 14 July and end in London on 2 October. In between, it will visit Edinburgh on 21 July, and take in Newcastle, Leeds, Birmingham, Cardiff and the Labour Party conference at Bournemouth.

Twenty marchers are expected to walk the whole way - 10 from the UK, 10 from the developing world. One will be Risolat Saidmuradova from Tajikistan, who said she wanted to know how other countries were going to combat global warming.

She will be joined by Rosalía Soley from El Salvador and Rachel Tavenor from Newcastle. Christian Aid is looking for a volunteer from Scotland, and will soon announce celebrity endorsement.