Chinese lose 2.5 billion years of life expectancy due to coal burning

mongabay.com
July 08, 2013



Chinese who live north of the Huai River will lose an aggregate 2.5 billion years of life expectancy due to the extensive use of coal burning in the region, concludes a new study published in Proceedings of the National Academy of Sciences.

The study, which involved researchers from MIT, China, and Israel, estimated the impacts of particulate matter from coal-powered heating on life expectancy. In the process, the authors developed a rule-of-thumb for the effects of air pollution: "every additional 100 micrograms of particulate matter per cubic meter in the atmosphere lowers life expectancy at birth by three years," according to a statement from MIT.

The researchers also compared the effects of energy policy on life expectancy. People who live south of the Huai River — the conventional "dividing line" between north and south in China — had lower rates of mortality associated with diseases linked to exposure to particulates. The difference: the Chinese government provided free coal for fuel boilers in the north, but not in the south.

"It's not that the Chinese government set out to cause this," said study co-author Michael Greenstone, an economist at MIT. "This was the unintended consequence of a policy that must have appeared quite sensible."

"There are no other policies that are different north or south of the river, so far as we could tell," he added, noting that other types of pollution are similar between the two regions.


Coal-carrying barges in Shanghai in 2006

Greenstone said the findings add further weight to the need to curb coal use.

"What this paper helps reveal is that there may be immediate, local reasons for China and other developing countries to rely less on fossil fuels. The planet's not going to solve the greenhouse-gas problem without the active participation of China. This might give them a reason to act today."



The paper comes shortly after China adopted a framework on limiting carbon emissions. Currently limited to a handful of cities, the Chinese government hopes the program could eventually cut the country's emissions, which are the highest of any country on Earth.


CITATION: Yuyu Chen, Avraham Ebenstein, Michael Greenstone, and Hongbin Li. Evidence on the impact of sustained exposure to air pollution on life expectancy from China’s Huai River policy. PNAS July 12, 2013











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CITATION:
mongabay.com (July 08, 2013).

Chinese lose 2.5 billion years of life expectancy due to coal burning.

http://news.mongabay.com/2013/0708-coal-life-expectancy.html