Urban heat, pollution found to mess up weather

Posted by tourdemars to Terraforming at December 16, 2003 12:00 PM

The massive amounts of heat and pollution that rise from the world's cities both delay and stimulate the fall of precipitation, cheating some areas of much-needed rain and snow while dousing others, scientists said. The findings support growing evidence that urbanization has a sharp and alarming effect on the climate, and those changes can wreak havoc with precipitation patterns that supply life's most precious resource: water.