BBC: The UK’s plans to cut emissions by 80% by 2050 are fundamentally flawed and almost certain to fail, according to a US academic. Roger Pielke Jr, a science policy expert, said the UK government had underestimated the magnitude of the task to curb greenhouse gas emissions. He added that it would be more effective to “decarbonise” economic growth rather than focus on targets. Professor Pielke said that a country’s greenhouse gas trajectory was determined by three factors: …