Delhi's smog and climate change are separate environmental crises

Rise of private diesel cars in the last two decades requires the city to de-dieselise private cars as it did to public transport a decade and a half ago

Omair Ahmed rightly points to Delhi air quality crisis as symptomatic of the key environmental challenge facing India and the developing world (Delhi Smog Reveals Global Failures to Deal With Climate Change, November 13, 2017). While his headline misleadingly argues that the Delhi smog reflects the failure to fight climate change, his excellent piece does not explain how this local (or at most regional) environmental crisis is shaped by climate change.

While it is entirely possible that that climate change might be increasing the frequency of smog formation, the article makes no mention of evidence to