Stock Photo - 26 November 2021, North Rhine-Westphalia, Duesseldorf: Hannah Cloke, British hydrology professor, and Ralf Witzel (FDP), chairman of the committee, are on the committee of inquiry into the flood disaster of mid-July. She had been involved in the development of the European flood warning system EFAS and accused the authorities of a ""monumental"" system failure after the flood disaster. Photo: Rolf Vennenbernd/dpa. - Duesseldorf/North Rhine-Westphalia/Germany

Stock Photo: 26 November 2021, North Rhine-Westphalia, Duesseldorf: Hannah Cloke, British hydrology professor, and Ralf Witzel (FDP), chairman of the committee.

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