Heavy rain and storm water events such as those in the Ahr valley in Germany in 2021 or in Pakistan, Australia or South Africa in 2022 cause streams to swell to raging torrents. They flood roads,
This website uses cookies. Those have two functions: On the one hand they are providing basic functionality for this website. On the other hand they allow us to improve our content for you by saving and analyzing anonymized user data. You can redraw your consent to using these cookies at any time. Find more information regarding cookies on our Data Protection Declaration and regarding us on the Imprint.