Guardian: Agreed in 1997, the Kyoto protocol aimed to cut emissions of greenhouse gases across the developed world by about 5% compared with 1990. It came into force in 2005, following ratification by Russia, which means the deadline for the legally binding cuts to be made is 2008-12. It was based on the “common but differentiated responsibility” approach to global warming, with countries most able to make cuts asked to do so. Many countries were allowed to increase pollution, including all those in …