lucidkoan writes "Environmentalists have long argued about
whether geoengineering (using technology to alter the climate)
is a good way to tackle climate change. But the tactic has some
heavy hitters on its side, including Bill Gates. The Microsoft
founder recently announced plans to invest $300,000 into
research for machines that suck up seawater and spray it into
the air, seeding white clouds that reflect rays of sunlight away
from Earth. The machines, developed by a San Francisco-based
research group called Silver Lining, turn seawater into tiny
particles that can be shot up over 3,000 feet in the air. The
particles increase the density of clouds by increasing the
amount of nuclei contained within."