How cloud seeding makes it rain artificially

Controlling the weather may still be years away, but scientists and farmers are using a technology called cloud seeding, which makes water vapour in clouds to collide, turning it into precipitation that would not otherwise fall to earth. But how does it work and who does it benefit? For more info, please go to http://www.globalnews.ca Subscribe to Global News Channel HERE: http://bit.ly/20fcXDc Like Global News on Facebook HERE: http://bit.ly/255GMJQ Follow Global News on Twitter HERE: http://bit.ly/1Toz8mt #GlobalNewsExplains #GlobalNewsOriginal #GlobalNews