ScienceDaily: Carbon dioxide, the greenhouse gas that has had the largest impact on our climate, will continue to rise even if current national and international targets for reducing emissions are met, scientists warn. But, they say, strong action taken now– such as the 80% target recently announced by the UK government — will continue to have benefits a long time into the future. A group of scientists have, for the first time, combined the outcomes of proposals by the G8 countries and the UK …