Guardian: An organisation set up to help industry reduce CO2 emissions has only had a limited impact, the government’s spending watchdog said today. The National Audit Office (NAO) found that only 12% of large businesses had worked with the Carbon Trust to reduce their carbon emissions, and just 40% of the potential savings identified by the trust between 2003 and 2006 had actually been implemented. Set up by the government in 2001 as a private company, the trust was designed to …