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European drought dries up rivers, kills fish, shrivels crops

A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) People relax on the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A view of the peninsula of Sirmione, on Garda lake, Italy, Friday, Aug. 12, 2022. Lake Garda water level has dropped critically following severe drought resulting in rocks to emerge around the Sirmione Peninsula. (AP Photo/Antonio Calanni) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) A transport vessel drives on the river Rhine in Dormagen, Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Federico Gambarini/dpa via AP) A cargo ship sails on the river Rhine between Cologne and Duesseldorf in Germany, Friday, Aug. 12, 2022. The persistent drought makes the level of the Rhine fall further and further, navigation is only possible to a limited extent. The river levels continue to fall and bring a burden on shipping and nature. (Christoph Reichwein/dpa via AP) The skyline of the financial district of Canary Wharf is stands in the background as the grass in the Wanstead Flats is dry, in London, Friday, Aug. 12, 2022. Heatwaves and prolonged dry weather are damaging landscapes, gardens and wildlife, the National Trust has warned. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 degrees Celsius expected next week. (AP Photo/Alberto Pezzali) FILE - A boat laying on a dry bank of river Danube after a long time of drought near the village of Cortanovci, 50 kilometers north-west of Belgrade, Serbia, Tuesday, Aug. 9, 2022. (AP Photo/Darko Vojinovic, File) FILE - Boats lie on the dried riverbed at a tourist dock along the Po river in Sermide, Italy, Thursday, Aug. 11, 2022. The river Po runs 652 kilometers (405 miles) from the northwestern city of Turin to Venice. (AP Photo/Luigi Navarra, File) FILE - Dry and sun burnt grass spreads in Greenwich Park with the backdrop of Queens House and the high risers of Canary Wharf in London, Tuesday, Aug. 9, 2022. Britain is braced for another heatwave that will last longer than July's record-breaking hot spell, with highs of up to 35 C expected next week. (AP Photo/Frank Augstein, File) FILE - People take a stroll on the river bed of the Waal as water levels dropped because of drought in Nijmegen, Netherlands, Tuesday, Aug. 9, 2022. In parts of the country a ban on daytime irrigation of agricultural land has been issued because of extreme drought. (AP Photo/Peter Dejong, File) FILE - A sunbather stands in front of the receding water line of the Verdon Gorge, southern France, Tuesday, Aug. 9, 2022. France was in the midst of its fourth heat wave of the year Monday as the country faces what the government warned is its worst drought on record. (AP Photo/Daniel Cole, File) FILE - People take photos on the southern tip of Margaret Island, which can be seen due to low water level of the River Danube. in Budapest, Hungary, Tuesday, Aug. 9, 2022. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Anna Szilagyi, File) FILE - A motorcycle drives through the lavender fields of Valensole during a hot day in southern France, Tuesday, Aug. 9, 2022. France was in the midst of its fourth heat wave of the year Monday as the country faces what the government warned is its worst drought on record. (AP Photo/Daniel Cole, File) FILE - Horses graze next to a tree that fell years ago on the dried out meadow of a stud farm in Wehrheim near Frankfurt, Germany, Thursday, Aug. 11, 2022. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Michael Probst) FILE - The dried riverbed of the Po river in Sermide, Italy, Thursday, Aug.11, 2022. The river Po runs 652 kilometers (405 miles) from the northwestern city of Turin to Venice. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Luigi Navarra, File) FILE - The river Rhine is pictured with low water in Cologne, Germany, Wednesday, Aug. 10, 2022. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Martin Meissner, File) Cows eat whatever green vegetation remains in a sun-dried field in Moloy, Burgundy region, France Wednesday Aug. 10, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) A tractor throws up a cloud of dust as it works in a sun-dried field in Til-Chatel, France, Tuesday Aug. 9, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) A view the dried-up river Tille in Lux, France, Tuesday Aug. 9, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) The sun beats down on the dried-up bed of the river Tille in Lux, France, Tuesday Aug. 9, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) Dead fish lay on the dried-up bed of the river Tille in Lux, France, Tuesday Aug. 9, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) FILE - A goose looks for water in the dried bed of Lake Velence in Velence, Hungary, Thursday, Aug. 11, 2022. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Anna Szilagyi, File) FILE - A paddle boarder passes through a drying portion of the Verdon Gorge in southern France, Tuesday, Aug. 9, 2022. France was in the midst of its fourth heat wave of the year Monday as the country faces what the government warned is its worst drought on record. (AP Photo/Daniel Cole, File) Dead fish lay on the dried-up bed of the river Tille in Lux, France, Tuesday Aug. 9, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) Farmer, Baptiste Colson, holds a clump of dried earth and grass as he stands in a sun-dried field in Moloy, France Wednesday Aug. 10, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) FILE - Wilted sunflowers in a field near the village of Conoplja, 150 kilometers north-west of Belgrade, Serbia, Tuesday, Aug. 9, 2022. Drought in Serbia have led to forecasts for this year's harvests being reduced. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Darko Vojinovic, File) A tractor throws up a cloud of dust as it works in a sun-dried field in Til-Chatel, France, Tuesday Aug. 9, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) FILE - A view of a dry lake bed near the village of Conoplja, 150 kilometers north-west of Belgrade, Serbia, Tuesday, Aug. 9, 2022. Water shortages reduced Serbia's hydropower production. (AP Photo/Darko Vojinovic, File) A sign on a fence near the dried-up river Tille says 'Swimming is Forbidden' in Lux, France, Tuesday Aug. 9, 2022. Burgundy, home to the source of the Seine River which runs through Paris, normally is a very green region. This year, grass turned yellow, depriving livestock from fresh food, and tractors send giant clouds of dust in the air as farmers work in their dry fields. (AP Photo/Nicholas Garriga) FILE - Boats lay on the dried lake bed in a port in Velence, Hungary, Thursday, Aug. 11, 2022. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Anna Szilagyi, File) FILE - A dead fish skeleton laying on the cracking earth of a dry lake bed near the village of Conoplja, 150 kilometers north-west of Belgrade, Serbia, Tuesday, Aug. 9, 2022. Water shortages reduced Serbia's hydropower production. An unprecedented drought is afflicting nearly half of the European continent, damaging farm economies, forcing water restrictions and threatening aquatic species. Water levels are falling on major rivers such as the Danube, the Rhine and the Po. (AP Photo/Darko Vojinovic, File)