“From Beijing to London: What India Must Learn to Clean Its Toxic Air” Introduction: Pollution Is a Solvable Problem India’s air pollution crisis—particularly in Delhi and the NCR—is often described as inevitable. It is not. History shows that some of the world’s most polluted cities have dramatically improved air quality —not by slogans, but through strong governance, disciplined execution, and long-term planning . Cities like Beijing, London, and Los Angeles were once choking under smog levels comparable to, or worse than, what Delhi faces today. Their journeys offer clear lessons for India. How Severe Is India’s Problem? (Contextual Data) The WHO safe limit for PM2.5 is 5 μg/m³ (annual average). Delhi’s annual PM2.5 levels have frequently been 10–15 times higher . Air pollution is now among the leading contributors to reduced life expectancy in India. This is no longer an environmental debate—it is a public health and econo...
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Showing posts from December, 2025