title: Climate optimism builds ahead of Paris talks.
authors.forename: Jeff
authors.initials: J
authors.lastname: Tollefson
mesh_terms: D003226:Congresses as Topic; D019049:Developed Countries; D003906:Developing Countries; D058735:Environmental Policy / Q000331:legislation & jurisprudence*; D057232:Global Warming / Q000331:legislation & jurisprudence / Q000517:prevention & control*; D007391:International Cooperation / Q000331:legislation & jurisprudence*; D017008:Negotiating; D000067656:Optimism; D010297:Paris