Thank you.
As a matter of physical reality, I believe the United States is the largest greenhouse gas emitter, soon to be surpassed, according to projections, by China. India is a very significant contributor as well. Clearly, all nations in the world should cooperate to reduce greenhouse gases, but the largest would certainly have to be there. That said, I'm aware there's been a lot of controversy around the Kyoto Protocol, because some people have said we shouldn't comply with Kyoto because China is not on board. China was indeed a signatory to the Kyoto Protocol, and, as we know, the Kyoto Protocol represents, I would say, the first installment of a process toward achieving sufficient cuts to address climate change. The thinking then was that the developed nations should take the first step. This first step was 2008 to 2012, so going on to the next step, certainly, events are proceeding, and we should do everything we can to get everyone on board.