The Guardian newspaper is running a Lighter Later campaign to have the clocks permanently changed, adding that continuing to move the clocks forward in summer, so they become one hour ahead of British Summer Time and two hours ahead of GMT, could also deliver carbon savings. Research the paper has commissioned has been presented at an event at Parliament. Dr Elizabeth Garnsey, who led the study for Cambridge University, said: "The carbon savings associated with this clock change are significant, equivalent to the carbon footprint of the production of 1,800 plastic bags for every home in Britain every year, or taking around 200,000 cars off the road."