| http://www.w3.org/ns/prov#value | - to become a party.Developing nations, including the world's top carbon emitter China, are only obliged to take voluntary steps to curb the growth of their emissions.The United States and other rich nations want a new global pact to do away with that either-or division to reflect the surge in emissions from the developing world, which is now responsible for more than half of mankind's annual greenh
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