$ 0 0 Series: Extreme Precipitation And Wisconsin's ClimateAs Rains Intensify, Sewage Surges Into Wisconsin Waters Audio: Danielle KaedingWisconsin Public RadioJan. 13, 2020 | 6 a.m.Shared viaWPRWisconsin in 2018 saw its most sewer overflow events since 2010, with increasing volumes of discharged waste. Experts say the problem plagues communities across the Great Lakes. Driving the spike: intensifying rainfall due to climate change.