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05:00 And then to deal with flooding in a completely other way, the Tofinu tribe has developed the largest lake city in Africa. Ganvié, meaning "We survived, " is built of stilted houses that are organized around a canal system that you can navigate by dugout canoe. And the royal square stands amongst 3,000 stilted buildings that include a post office, a bank, a mosque and even a couple of bars ..

02:37 And the Qasab reed is integral to every aspect of life. It is food for water buffalo, flour for humans and building material for these biodegradable, buoyant islands and their cathedral-like houses that they construct in as little as three days. And this dried Qasab reed, it can be bundled into columns, it can be woven into floors or roofs or walls, and it can also be twisted into a rope t..

www.ted.com/speakers/julia_watson Julia Watson | Speaker | TED Julia Watson designs built environments with an eye towards sustainability, climate resilience and dismantling the barriers between urban environments and the natural world. www.ted.com 00:10 When you imagine the architectural wonders of the world, what do you see? The greatness of the Pyramids of Giza or maybe the amazing aqueducts ..