Seattle Post-Intelligencer: Although his country now leads the world in greenhouse gas emissions, a top Chinese official on Wednesday sought to turn up the heat on the United States for talking a good line on global warming — but not acting. Sen. Maria Cantwell, D-Wash., responded by preaching cooperation, or what she called “co-opetition” — cooperation in bringing on line some energy technologies, but competition in other fields. She proposed establishing special “clean energy free trade zones” in both …