Times (UK): Emissions cuts proposed by the world’s leading countries fall far short of what is needed to prevent catastrophic global warming, according to a study released on the eve of the Copenhagen climate change summit. Even if countries adopted the most ambitious targets that each has put forward, the global average temperature would still rise by 3.5C by the end of the century and make large parts of the world uninhabitable. The UN’s top climate change official appealed to the 192 …