Indeed, after nearly two decades of trying, the best climate deal that countries have been able to agree on is one that imposes no real obligations, sets no binding emissions targets, and requires no specific actions by anyone. Surely, there is a lesson here.
说真的，辛辛苦苦谈了将近20年，各国能够达成一致的气候协议，至多不过是不设实际义务、不设量化目标甚至不对任何具体国家提出任何具体要求的协议。这其中肯定有什么教训值得吸取。