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Osborne Reef
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- 1Two million tyres turned Florida's artificial reef into an ecological disaster▼On a site the size of 27 football fields, 2 million of these were dropped in the ocean to create an artificial reef – instead, it became a disaster
In the 1970s, around two million tyres were dumped across a seabed site the size of 27 football fields off Fort Lauderdale, Florida, in an attempt to build the world's largest artificial reef. The plan failed: the tyres did not attract coral, shifted in storms and crushed natural reef, prompting decades of costly removal efforts and serving as a warning against similar projects worldwide.