Egypt’s coastal city of Alexandria has survived invasions, fires and earthquakes since it was founded by Alexander the Great more than 2,000 years ago.
But the fabled port city 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.
A severe storm in 2015 flooded large parts of the city, killing at least six deaths as two dozen homes collapsed, exposing weaknesses in the local infrastructure.
The city, Egypt’s second-largest, is surrounded on three sides by the Mediterranean and backs up to a lake, making it uniquely susceptible to the rise in sea levels caused by global warming and the melting of the polar ice caps.