This piece was originally published in Undark and appears here as part of our Climate Desk collaboration. In July, at a boatyard warehouse on Chicago’s South Side, Tamara Thomsen inspected a roughly 15-foot-long canoe likely made more than a century ago. The canoe—called a dugout, because it was carved from a single tree trunk—rested on two construction horses, a bright light illuminating its contours and scrape marks. Thomsen, a maritime archaeologist with the Wisconsin State Historic Preservation Office, used a GoPro to take photographs of the dugout, while Sissel Schroeder,…
