In terms of the number of people, Egypt, Libya, Morocco and Tunisia are the most exposed countries to sea level rise , and this difference is projected to increase under SSP2-4 . Among MENA countries, Egypt is particularly exposed with several coastal cities at risk of inundation . In the Nile Delta, between 1500 and 2600 km2 of land are projected to be exposed to flooding by 2100 by a sea level rise of 0.75 m  and additional subsidence up to 0.25 m, threatening around 6.3 million residents . Basin-wide economic losses are estimated at USD 5 billion, assuming a rise of sea levels by 1.26 m in 2100 .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report