Environment News Service: Environment Secretary Hilary Benn today said that the UK is making progress on cutting greenhouse gas emissions, but there is still much work to do. Provisional statistics published today for total UK greenhouse gas emissions for 2007 showed a drop of two percent below the previous year, with 639.4 million metric tonnes carbon dioxide equivalent, down from 652.3 million metric tonnes in 2006. The decrease in CO2 emissions resulted from fuel switching from coal to natural gas …