At the China Forest City Forum held in Guangzhou on November 18, Academician Jiang Youxu of the Chinese Academy of Sciences called for the government to consider levying an ecological tax on enterprises and even residents who emit carbon dioxide. Jiang Youxu believed that as emitters of carbon dioxide living on Earth, residents should pay a price for energy conservation and emission reduction. "Residents can be encouraged to buy a 20-yuan ecological fund every month."