Hu, an influential economist and advocate of "green revolution", is pressing the government to take a leadership role in Copenhagen by making a public commitment to reduce emissions, and last week submitted the proposal to set a new carbon dioxide goal.He is one of 37 members of an elite body that advised the premier, Wen Jiabao, to include ambitious targets of a 20% improvement in energy efficiency and 10% reduction of pollution in the 2006-2010 plan. With government figures suggesting the country is on course to approach or exceed those goals, Hu suggests they be extended for the next plan with the addition of the carbon dioxide target.