How rampant urbanization in Delhi is causing pollution, housing shortages

India's capital chronicles the extremes of a story that is playing out around the world as a flood of people in countries poor and rich move to the biggest cities

The effects of unbridled urbanization are inescapable in India’s capital city. Smog blankets landmarks like India Gate in winter, delaying flights at the airport due to poor visibility. Traffic jams are part of the daily routine and slums abut New Delhi’s luxury hotels and private mansions, testifying to a growing wealth divide and chronic housing shortage.

And every day, the problem gets bigger. More than 27 million people live in and around Delhi with about 700,000 more joining them each year, according to research firm Demographia. The United Nations forecasts that by 2028 the population could outstrip Tokyo’s to make Delhi