development strategy on this timely important process to be that brookings a special thanks to jon thornton, stir until it and can lead in fall. and to the entire team congratulations on your visit that brought all of us here today. i'm going to discuss three topics. first the u.s. and chinese energy economies, second, the reason it makes sense for us to cooperate and third, some of the programs we have under way to do exactly that the rate of what we start with some basic statistics. together china and the united states consume about 40% of the world's energy, a little bit less. it goes to 2008 and is trending upwards in 2009. together it accounts for more than 40% of global greenhouse gas emissions. china is currently the largest emitter of greenhouse gases. the u.s. is the larger historical a matter if you get this dhaka for the last 20 years of the greenhouse gas emissions but in both of our country's. but there is still a big gap in the per-capita energy use as you can see here this is primary consumption and millions of btu per person. china much, much lower than the united states. bu