Some of Britain's biggest companies - car makers, airlines, banks and retailers - have joined together, pledging to offer greener products and pursue research into ways to reduce carbon emissions.
The group, which includes British Petroleum, Tesco and British Telephone, intend to set the standard for regular monitoring and reporting of carbon emissions, investing in technology and emission reducing products and promoting greener behaviour by their employees.
The 18-companies involved employ more than two million people worldwide and generate revenues of two trillion dollars annually. The group is to release a report on Monday setting out its plans. It notes that the real responsibility for cutting emissions lies with consumers who, through their purchases, directly influence some 60% of Britain's carbon emissions.