Smog mixed with a thick layer of clouds covers the Metro Manila skyline in the Philippines, on August 27, 2026.

Smog mixed with a thick layer of clouds covers the Metro Manila skyline in the Philippines, on August 27, 2026.

In 2025, the Trump administration ended a long-running program to collecting air pollution data at U.S. embassies. A new study suggests that led to a 24-33% increase in local pollution levels.

(Image credit: Photo by Melvin James Urubio/NurPhoto)