(AP Photo/Patrick Post)Houseboats sit in low water on the Waal river in Nijmegen, Netherlands, Thursday, July 30, 2026, due to drought conditions. (AP Photo/Patrick Post)Houseboats sit in low water on the Waal river in Nijmegen, Netherlands, Thursday, July 30, 2026, due to drought conditions. (AP Photo/Patrick Post)Houseboats sit in low water on the Waal river in Nijmegen, Netherlands, Thursday, July 30, 2026, due to drought conditions. Frans Schilte has seen the summer periods of low water levels get longer in recent years. ___Associated Press journalists Ahmad Seir in Nijmegen, Netherlands, Daniel Niemann in Cologne, Germany, and Stefanie Dazio in Berlin contributed to this report.