Emma Graham-Harrison
Wednesday, March 10, 2010

BEIJING, March 10 (Reuters) – China’s top climate negotiator said on Wednesday that the cause of global warming was still not clear but the problems it was creating were so serious that the world must anyway act to cut greenhouse gas emissions.

Xie Zhenhua, vice-chairman of the powerful National Development and Reform Commission, also warned the United States it should not use domestic divisions over climate change as an excuse to pass its responsibilities off onto other countries.

“There are still two different viewpoints in the scientific field about the cause of warming,” Xie told a news conference on the sidelines of the annual session of China’s largely rubber-stamp parliament. ”

At present, many people, or the most mainstream view, is that the combustion of large amounts of fossil fuel over the process of industrialisation caused an increase in greenhouse gases, which caused climate warming.”

“Another point of view holds that the main reason is changes in sunspots, or natural changes in the environment. There is an even more extreme point of view, that human influence on changes in nature can only be miniscule,” he added.

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