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December 6, 2023

How China Cleaned Its Filthy Air While India Continues to Choke

Air pollution declined 42.3% between 2013 and 2021, according to EPIC.

India and China have each struggled with throat-searing air pollution blanketing their major cities with the onset of winter. Only one country has succeeded in tackling the problem.

China has made strides in scrubbing the once-foul air that had become a fact of life each year in major cities like Beijing and industrial towns across the country. Meanwhile, huge swaths of northern India continue to choke on clouds of polluted air, peaking during the winter period as temperatures drop, winds disappear and farmers across the region set their fields ablaze. 

In the 30 days through Nov. 9, levels of hazardous microparticles known as PM2.5 averaged 14 times higher in New Delhi than in Beijing, according to air-quality tracker IQAir. The picture is even more stark outside the two capitals. Last year, 65 of the 100 most polluted cities were in India, while China had just 16, according to IQAir. 

Previously, it was China that dominated the list: In 2017, about three-quarters of IQAir’s tally of the world’s most polluted cities were in China, while 17 were in India. India’s pollution crisis is conspicuously absent from its climate and environmental ambitions, both on the world stage and at home. It also remains far from the top of the agenda of a coming national election that observers widely expect will sweep Prime Minister Narendra Modi into a third term. That’s despite a study last week showing air pollution killed an estimated 2.18 million Indians per year.  

The pollution epidemic is a problem not just for the health of India’s 1.4 billion residents — the biggest population of any country in the world — but also for its economy, currently the fastest-growing of any major nation. A World Bank report published in June estimated that India’s annual increase in fine particle pollution shaves 0.56 percentage points off its annual GDP growth every year due to reduced worker productivity and capital formation. 

Air pollution in India also reduces the productivity of a range of business assets — blocking sunlight from solar panels, degrading electronic circuitry and reducing crop yields, according to a 2021 report commissioned by the Clean Air Fund.

“This is the biggest challenge that urban India faces today,” said Karthik Ganesan, a fellow and director of research coordination at the Council on Energy, Environment and Water, a Delhi think tank. “Effectively, it’s turning the demographic dividend into a big bane because I’m left having to care for all these people who in their 50s or 60s are down and out.”

A decade ago, China was also confronted with crisis-level air pollution across its major cities, a consequence of breakneck growth and runaway emissions from a combination of vehicles, heavy industry and coal-fired power plants. The issue attracted international attention as the US Embassy in Beijing — one of the few reliable sources of air pollution data in the nation’s capital — broadcast regular crisis-level readings. It also translated into protests that bubbled across the country. 

China at first pushed back against the outcry and demanded foreign embassies cease publishing air-pollution data. But the government eventually owned up to the problem as pollution levels continued to soar to new records. In 2014, President Xi Jinping admitted air pollution was the “most prominent problem” facing Beijing, and the country responded with a national plan to reduce it with a $270 billion war chest. 

In the years since, China restricted the number of cars on the road in cities like Beijing, Shanghai and Guangzhou, while capacity in China’s emissions-heavy iron and steel industries fell and new coal-fired power plants were banned in some areas, according to the Energy Policy Institute at the University of Chicago, or EPIC. 

Air pollution declined 42.3% between 2013 and 2021, according to the institute, which said China’s efforts were the sole reason behind the modest drop in global pollution levels during that period.

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