carbon dioxide for burning fassel fuels? >> i will agree -- if you look at -- for example in the united states and china, where over 40% of the greenhouse gas emissions in the world today. so we need both the developed countries and the developing countries to say we're all in this together. of course, nobody expects a developing country to decrease their carbon emissions or do things that a developed country has the capability of doing. so the language in the u.n. is manage. if i look at what china is doing, i've seen a sea change over the last year or two. i recall that was a -- there was a release of a report that i had co-chairpersonned on sustainable energy that was sponsored by the inner academy council and i had the pleasure of talking to the premier of china about this about two and a half years ago. they were pushing energy efficiency but there was no direct mention of climate change. we were talking about these issues. two years later i go back, have another extended conversation with the premier and the vice premi