epa13166390 View of cracked ground along the Rhine River with low water levels in Cologne, Germany, 13 August 2026. The Rhine River's discharge has dropped to historic lows at key measuring points due to heatwaves and severe drought. EPA/CHRISTOPHER NEUNDORF

epa13166387 A view of the Rhine River with low water levels in Cologne, Germany, 13 August 2026. The Rhine River's discharge has dropped to historic lows at key measuring points due to heatwaves and severe drought. EPA/CHRISTOPHER NEUNDORF

epa13166385 A view of the Rheinau Harbor near the Rhine River with low water levels in Cologne, Germany, 13 August 2026. The Rhine River's discharge has dropped to historic lows at key measuring points due to heatwaves and severe drought. EPA/CHRISTOPHER NEUNDORF