Drivers filling up with fuel will, from today, be able to participate in a trial for the world's first real-time personal carbon trading scheme. Up to 1,000 volunteers will be able to use their Nectar shopping loyalty cards at any BP garage to record how much fuel they have purchased – and, as a result, create an electronic record of how much carbon dioxide they will consequently be emitting into the atmosphere.

Each volunteer will be given a monthly allowance of carbon credits which they will then be able to trade with other volunteers using an online trading system dubbed the CarbonDAQ. ... Read full article