Pat Shingleton for July 8, 2008
 |
 |
| Advocate Columnists |
 |
Print
Email
Save
Share
Del.icio.us
Digg
Facebook
Reddit
Cloud-seeding experiments began in 1946 when Vincent Schaefer dropped dry ice into super-cooled water droplets. Thomas Bell, of NASA’s Goddard Space Flight Center, reviewed data from its Tropical Rainfall Measuring Mission from 1998 to 2005. He found, on average, more rain fell between Tuesdays and Thursdays than between Saturdays and Mondays in the Southeast. The cause seems to be workweek pollution, such as emissions from traffic, businesses and factories that seed clouds with particulate matter. Theese pollutants could make summertime storms stronger. Water and ice inside clouds attach themselves to the particulates, forming additional water droplets and stronger downpours.
Fastcast: Hot.
 | ||||
| Most Popular | Most Emailed | Hot Topics | ||
