Extreme precipitation has increased most rapidly in the Northeast over the past 25 years. According to previous studies, the amount of extreme precipitation—rain or snow that leaves behind one to two inches of water in a single day—has increased by almost 50 percent since 1901 to 1995. A new Dartmouth study sheds light on how changes in temperature and precipitation brought on by global warming affect flooding and streamflow in the Northeast. The results have been published in the American Water Resources Association Journal. The scientists analyzed how precipitation, including snowfall, winter downpours on snow occasions, springtime snowmelt, and soil