A drone being flown by Chiang Mai University’s Forest Restoration Research Unit (FORRU) field research officer Worayut Takaew during a mapping survey of a reforested area on a hillside near Chiang Mai. — AFP
CHIANG MAI, Thailand: On a hillside overlooking cabbage fields outside the northern Thai city of Chiang Mai, a drone’s rotors begin to whir, lifting it over a patch of forest.
It moves back and forth atop the rich canopy, transmitting photos to be knitted into a 3D model that reveals the woodland’s health and helps estimate how much carbon it can absorb.
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