caption: This Aug. 10, 2019 photo, shows Stanley Beach in Alexandria, Egypt, at the same site of a 1933 photograph, foreground. Alexandria, which has survived invasions, fires and earthquakes since it was founded by <PERSON> more than 2,000 years ago, now faces a new menace from climate change. Rising sea levels threaten to inundate poorer neighborhoods and archaeological sites, prompting authorities to erect concrete barriers out at sea to hold back the surging waves.
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