In the 2010s, Beijing was neck-deep in pollution just like Delhi is now. Then it hit reset and fought its way out ...

Ministers have set a new target on pollution from fine particulate matter with a diameter of 2.5 micrometers or less (PM2.5) to “support better quality of life and reduce pressure on the NHS.” PM2.5 ...

Hanoi woke up on Dec. 11 to its most severe pollution episode of the winter, as monitoring stations across the capital ...

More than 90 cities in the world’s top 100 polluting list are in India. With every passing year, the AQI is rising, reaching ...

The Great Smog of London began on December 5, 1952, claiming between 4,000 and 10,000 lives over the span of five days. The ...

When the Berlin Wall went up overnight, National Geographic correspondents were on hand to document a city that became a ...

Explore Pennsylvania’s most unusual tunnel and learn the remarkable story behind it that locals still talk about today.

Hanoi is bracing for one of its worst air-pollution spells of the year, pushing the government to roll out emergency measures ...

In Africa, artificial intelligence and data is being used to identify pollutants and clean up the air. On the outskirts of Cairo, the pyramids shimmer in a brownish haze. In gridlocked Nairobi, ...

The president said he would weaken Biden-era mileage standards, which were designed to increase electric-vehicle sales, ...

What happens when Italy’s grand tourer meets South America’s most dangerous road? A journey equal parts terror, altitude, and ...

The Boone & Scenic Valley Railroad and James H. Andrew Railroad Museum in Boone, Iowa, delivers that magic in spades, offering an experience that’ll have you checking your calendar to plan a return ...