Put simply, carbon rationing is about limiting the amount of carbon you use each year. Well, each day in fact. Carbon rationing action groups (crags) have sprung up all over the place and members pledge to hit a reduction target in their carbon emissions. This can often have a monetary incentive too – if a member fails to meet their target they have to pay a fine that is agreed at the beginning of the year.
Members keep track of their bills, travel usage etc to work out how much carbon they use and try to reduce it. Each crag can share tips and ideas to help fellow members. The debts paid at the end of the year then go to a variety of things that are agreed upon at the start of each year.
Sounds like a good idea? You can start by finding out more here.