CALIFORNIA - Tyree Johnson apartment that was built overlooking the Pacific Ocean— until it started crumbling into a bluff into the ocean. 

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For more than fifteen years, he enjoyed sunsets over the water from his back porch on Pacifica, a few miles southwest of San Francisco.

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Dolphins swim and hang on to lightweight flies floating above. 

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Yet, with all that wonder came a risk: Temptations weakened and sea currents rushed. 

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"In the last year, it's recently started to give way," he said. "It was anything but continuous." 

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It was a few entrances when a loud noise startled him at about 4:30 at the beginning of the day. 

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In April 2010, experts told him to evacuate the entire building before it falls into the sea 

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10 years later, a UCLA report warns that Johnson's story will not be extraordinary: large numbers of people living along California's coast may be forced to flee in the long term as environmental change drives rising oceans, creating ever-increasing seabed areas. 

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