SANTIAGO( Reuters)-A punishing, decade-long drought in Chile has gone from bad to worse due to a scorching July, a month which typically brings midwinter weather showering the capital Santiago in rain and snow.... On Tuesday, a central Santiago weather station had recorded just 78 mm( 3 inches) of rainfall so far this year compared to last year's 180 mm and an average amount of 252 mm, according to Chile's Meteorological Service.... " Our only advantage is we now know how climate change will h