BEND, OR -- Central Oregon Landwatch claims a recent study they conducted shows climate change may decrease water levels so much in Tumalo Creek, it would threaten the city's water pipeline project. Bend City Councilor Casey Roats is skeptical of the findings of just one study and is waiting for the results of larger study funded by federal and state money. Councilor Roats says it's been difficult dealing with Central Oregon Landwatch. "You have environmental groups that have a value set and don't want us to be taking anything out of the Tumalo Creek - And there's no city in their right mind who would give up water rights from the turn of the century. If you do that you move to the back of the line instead of the first in line."