Work-from-home order issued as Thai city chokes on pollution

Authorities on Friday urged people in the northern Thai city of Chiang Mai to stay indoors and work from home as air pollution spiked to hazardous levels.

Smoke from forest fires and farmers burning crop stubble has blanketed the popular tourist destination in recent weeks.

On Friday morning, the air monitoring website IQAir ranked Chiang Mai as the most polluted major city in the world, ahead of…