The image shows the sprawling city of Chiang Mai during day. The airport is visible to the lower left of the city center. further left is mountain Doi Suthep, lush green but in all other directions from the city center are signs of human habitations radiating outward broken up by what is presumably farm land.

Hazy Skies in a Growing City

Chiang Mai, a city in northern Thailand popular with tourists, faces seasonal spikes in air pollution. View the full story

Credits: NASA Earth Observatory / Michala Garrison and Wanmei Liang