Then, ten years ago, I moved to Minneapolis and finally experienced the DIY skating rink phenomenon for the first time. For those of you who grew up in Wisconsin or Minnesota or Toronto or other places in the humid continental/snowy winter climate zone (see the map below, courtesy of Wikipedia), this is just a normal part of growing up - for me, it's still pretty amazing. This is most certainly one of those things that makes Wisconsin and its climatic kindred spirits distinctive as places.
I'm especially in awe of those dedicated souls, like our elementary school principal, who get out there early in the morning on frigid days and make these rinks for us to enjoy. Wisconsin winters provide a good bit to complain about, to be sure, but it would be a shame to see this tradition disappear if certain climate models are accurate.