Experts say climate change is making extreme weather, including heatwaves and droughts, more likely.
Parts of the river Rhine have dried out after a long drought period in Bingen, Germany.
Horses graze next to a tree that fell years ago on the dried out meadow of s stud farm in Wehrheim near Frankfurt, Germany.
The river Rhine is pictured with low water in Cologne, Germany. The low water levels are threatening Germany's industry as more and more ships are unable to traverse the key waterway. Severe drought will worsen in Europe in August as a hot and dry summer persists.
A cargo ship is sailing on the Rhine in Duesseldorf, Germany. Due to the ongoing drought, the Rhine level has reached a low. The Rhine level near Cologne was 76 centimeters (low: 69 centimeters). In Düsseldorf, 34 centimeters were measured (23 centimeters). For the coming days, even further falling water levels are expected.
A container ships passes Pfalzgrafenstein castle in the middle of the river Rhine in Kaub, Germany.
An old shipwreck lies on the left bank of the Rhine in Emmerich, Germany.
A cargo ship sails past dry land on the Rhine, in Dusseldorf, North Rhine-Westphalia, Germany. After weeks of drought, the water levels of the Rhine have reached historic lows.
A barge passes exposed rocks and sandbanks on the river Rhine in Bacharach, Germany.
A cargo ship is sailing on the river Rhine in Cologne, Germany.
Boats lie dry in the almost dry Rhine arm between Bad Honnef and the Rhine island Grafenwerth in Bad Honnef, Germany.