Over the past several years, though the EU and Japan have strongly supported implementation of the Kyoto Protocol's mechanism for controlling overall emissions, the US--the world's largest emitter of carbon dioxide--continued to resist.
多年來，雖然歐盟體系和日本等國大力支持京都議定書的「總量管制」機制，無奈身為 CO2 最大生產國的美國卻始終抵制。