Climate change is a global challenge and bears on the future of humanity. It thus requires a global response. Developed countries have unshirkable hi… - Mao Ning

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Climate change is a global challenge and bears on the future of humanity. It thus requires a global response. Developed countries have unshirkable historical responsibilities for climate change. They need to adhere to the principle of common but differentiated responsibilities, take the lead in substantial emission reduction, and honor their pledge of financial, technological and capacity-building support for developing countries.