Models of what global climate will look like in 10, 50, and 100 years get more sophisticated every year. But what will climate change mean for water resources in regional communities? A group of researchers is building tools to help scientists and regional water managers answer that question. “We’ve been developing new models and new techniques…to refine our understanding of the uncertainty in projections going forward—for hydrology, for snowpack, for important water resources, for flood extremes,” said Andy Wood, a hydrometeorologist at the National Center for Atmospheric Research (NCAR) in Boulder, Colo. Wood is the principal investigator of the project. “We’re creating a large set of projections that go forward and tell us about future water security,” he said.