how is that cycle changing? the highs are getting higher, and the lows are getting lower. i am most concerned about flooding. and sewage contaminating the drinking water supply for millions of people. when intense storms overwhelm milwaukee storm water system, sewage can imet dumped into lake michigan. what we are trying to do is instead of speeding up the water, slow it down. kevin share runs the district replacing concrete channels built in the 19 60s with more natural creeks to try to prevent future flooding. you think cities around the great lakes are prepared for what is coming? none of us are. but with access to so much fresh water, the great lakes region is still considered something of a climate haven. dennis stachewicz says with the right solutions they hope to weather the storm. change is occurring, and we probably need to prepare for it. for eye on america, ben tracy, cbs news, marquette,