green campaigners were crying foul directly to the chancellor on the site of the negotiations. he acclaimed the uk at the centre of a tidal wave of global green banking, the hope that the carrot of cheap finance rather than the stick of tough regulations is the answer for the world. faisal islam, bbc news. joining me now is laurie macfarlane, who is an economist and fellow at the ucl institute for innovation and public purpose. thanks so much. if the targets are not legally binding, why would anyone want to obey them? well. not legally binding, why would anyone want to obey them? well, it's certainl a anyone want to obey them? well, it's certainly a good _ anyone want to obey them? well, it's certainly a good thing _ anyone want to obey them? well, it's certainly a good thing that _ anyone want to obey them? well, it's certainly a good thing that we - anyone want to obey them? well, it's certainly a good thing that we are - certainly a good thing that we are talking about the system, because if we are going to come close to meeting our climate goals then that'll be absolutely key. the challenge with what's being announced today is, while companies have been asked to publish plans for meeting at zero, there is no