what could possibly go wrong? (cont'd)

From The Economist...

Clear skies ahead

With just over a year to go until the 2008 Olympic games begin, organisers are researching ways to guarantee clear skies for the opening ceremony on August 8th. Meteorologists reckon there is a 50% chance of rain. Zhang Qiang, head of the Beijing Weather Modification Office, said 26 rain-making stations are experimenting with launching chemical catalysts to dispel clouds and to control the time and place of rainfall. Ms Zhang warned, though, that the technique is effective only for light precipitation and can do little to prevent heavy rain.