On the margins of the Cancun climate conference we have talked to Andreas Kohn who consults companies on the issue of emissions trading. He attends the conference to stay up to date on the regulatory and financial issues the COP16 negotiations may entail. The green strategy consultant told GLOBAL IDEAS why a fixation with numbers isn't always the best thing when it comes to saving our climate. Focusing solely on keeping the rise of global temperatures below 2 degrees this century is misleading – if we forget what this actually means in terms of dangerous climate change, he said.