After years of devastating droughts that led to food shortages in North Korea, scientists in the Hermit Kingdom reportedly started developing artificial rain to combat the problem.
The method, known as cloud seeding, typically involves releasing flares of silver iodide from an aircraft's wing to generate more ice particles in a cloud. The process has been used for decades, usually involving a piloted aircraft.
Cloud seeding also is often used in Indonesia to put out forest fires during the dry season.
2:43
2:24
4:54
3:04
1:41
