Aerial advantage: A drone doing a forest restoration survey over a reforested area in Chiang Mai. — AFP
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.
