From DW Documentary.

Cities, floating on the ocean. It sounds like science fiction, but could soon become reality. Researchers are developing concepts for life on water – on a grand scale. Initial tests are promising. Is success a genuine possibility?

Over half of humanity lives near the coast. But in many places, flooding is a constant threat, forcing entire populations to search for new habitats. Paradoxically, these could be located directly on the water.

Cities, floating on the ocean. It sounds like science fiction, but could soon become reality. International research has long been developing concepts for life on water. Now, new designs — from temporary huts to affordable student dormitories to smart high-tech villas — seem to hold promise. Could huge numbers of people soon be living in "floating cities”?

This futuristic living concept could have some real perks. Artificial islands can adjust to changing water levels. Modular city ‘fleets’ can change location like ships. Flexible floating neighborhoods can expand or move closer together. Efficient water management systems could supply the city with food and energy.

But where floating cities drop anchor, questions arise: What laws do they fall under? What about environmental protection? How do they interact with the ecosystem? And how can they be protected from tsunamis? The search for answers has led to the creation of floating homes in Copenhagen and the Maldives; smart islands in the heart of Seoul; and the world’s first underwater greenhouse.

One thing is certain: in the face of climate change, we need to rethink our urbanized way of life. Will we succeed in making "floating cities” innovative, safe, and sustainable? Could we soon be experiencing a "blue revolution”?

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