I am outside of Mexico City with delegates from the world's 17 biggest economies who are meeting this week ahead of the next G8 meeting to further negotiate international climate agreements. Issues on the table include funding for forest protection, mid-term and long-term emission reduction targets, and financing for adaption and mitigation. The outcomes from these talks remain in doubt and other questions fester, like to what will the U.S. commit to? Greenpeace and our partners have our own climate treaty, which can serve as a model for these delegates as they decide the crucial questions about the future of …