"President Obama's envoy for climate change has dashed hopes of a bilateral climate-change deal during next month's presidential trip to China. Todd Stern says a wide gap remains between Chinese and U.S. officials. China and the U.S. account for 40 percent of all greenhouse gas emissions."

Louisa Lim reports for NPR October 28, 2009 (audio available online approx. 9 am ET) [2]