Francisco Kjolseth  |  The Salt Lake Tribune
Water flows in Big Cottonwood creek with the last of the fall color on Thursday, Oct. 31, 2013. A new study from the (NOAA) National Oceanic and Atmospheric Administration's Cooperative Institute for Research in Environmental Studies at the University of Colorado Boulder looked at the possible impacts of climate change on Salt Lake City's water supplies, including four streams - City Creek, Parley's Creek, Big Cottonwood Creek and Little Cottonwood Creek.