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Department of Spatial Planning
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RESI-extrem II: Starting phase soon to be completed

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© Isabel Post​/​IRPUD
Extension of the rainfalls from the Ahr region close to Olfen 2020

The extreme precipitation in the Ahr valley in the summer of 2021 has shown that it is already urgently necessary to deal with the consequences of heavy rainfall events. Of course, heavy rainfall events of this magnitude are exceptional; however, the frequency and intensity of such heavy rainfall events are most likely to be increased in the future due to global climate change. Therefore, it is fair to state that current practices in dealing with heavy rain may no longer be effective in the future convergence of climatic and non-climatic changes. Therefore, although some cities and property owners were not affected by the heavy rainfall event in the past, they are also advised to make efforts to protect themselves against precipitation at an early stage.