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epa03022451 The Chinese national flag flames in front of a building barely visible due to heavy smog in Beijing, China, 02 December 2011. As the Climate Change Summit aimed at cutting global carbon emissions is held in Durban, South Africa, environmental officials in China, currently the world's largest emitter of greenhouse gases, agree that the the country's air standards are too weak. Meanwhile, Chinese environmental officials have ordered fines on eight power plants accused of violating pollution limits and falsifying data. EPA/DIEGO AZUBEL