Environmentalists hope UN talks tough on climate change

You're probably not thinking about what you would like for Christmas yet. But ask any environmentalist for their ideal gift and you'll get a version of this answer: a binding agreement at the UN Climate Change Conference in Copenhagen this December that is strong enough to match the science. The talks are the latest in a line of climate conferences that began in Rio de Janeiro in 1992. This year the focus will be on the details of a ...