Engulfed Warding Off Floodwater In Alberta

摘要

In the spring of 2013, Wolf Keller, P.Eng., had just retired as Calgary's director of water services. Flying home from a European vacation on June 22, he looked down and was shocked to see a city "half underwater." Shortly after those floodwaters subsided, his phone rang, and he was asked to head an expert panel charged with finding ways to protect Calgary from such future devastation.