Flood-Ravaged Boulder, Colo., Sets Annual Rainfall Record

As the largest U.S. rescue airlift since Hurricane Katrina continued along the northern Front Range of Colorado, more rainfall in the flood-weary city of Boulder pushed it to a new milestone on Monday, with 2013 going into the record books as the city’s wettest year — with three and a half months still remaining...By adding moisture to the atmosphere, long-term climate change may have made flooding more likely to occur or worse than it otherwise would have been...According to numerous scientific studies, extreme rainfall has become more frequent across the U.S. during the past several decades in part due to manmade global warming