lucious responsible for the upkeep of the roughly 8 metre high external dikes that run for almost 30 kilometers right around this island in the wotton see. but have internal tykes also help to protect the island. as do the drainage channels. because it's not only the north sea waters that pose a threat but also those that rain down from above so how do the locals get the water off their island they channel excess water into a basin by the harbor where the from there it's pumped out into the sea at low tide it's a solid system except during periods of extremely heavy rainfall. increasing rainfall and rising sea levels will be challenges for a pair of on but as the tide marker in the harbor shows the islanders have plenty of experience with tidal surges they've done battle with the sea on many occasions . nevertheless the local population can no longer rely on the exact same type construction that has served them in the past. zot the state of schleswig-holstein came up with a strategy it's called the climate dike investment in london a crack that we're factoring in climate change and a