Chiang Mai, Thailand's second-largest city, lies within a network of narrow valleys in the country's northern highlands. Though the historic city is known for panoramic views of the surrounding mountains, clear skies have become less common. In recent decades, smoke has increasingly darkened the skies during the dry season, particularly in March and April.

Chiang Mai, Thailand’s second-largest city, lies within a network of narrow valleys in the country’s northern highlands. Though the historic city is known for panoramic views of the surrounding mountains, clear skies have become less common. In recent decades, smoke has increasingly darkened the skies during the dry season, particularly in March and April.

From Earth News - Earth Science News, Earth Science, Climate Change via This RSS Feed.