Every adult in Britain should be forced to carry 'carbon ration cards',

That's according to certain members of Parliament quoted in the Daily Mail article.

Under the scheme, everyone would be given an annual carbon allowance to use when buying oil, gas, electricity and flights.

Anyone who exceeds their entitlement would have to buy top-up credits from individuals who haven't used up their allowance. The amount paid would be driven by market forces and the deal done through a specialist company.

Of course, such schemes hit families and rural people harder than those living in the city, but why should that matter, right?