“The sea is rising in the Mediterranean Sea, and the land is sinking in the Nile Delta. And as a result, the Nile delta becomes the second most susceptible place on earth to climate change impacts in terms of sea level rise,” says Karim Elgendy, an associate fellow at the Chatham Institute think tank.

Egypt is not the only country that depends on the river – it’s shared by 11 African countries. The completion of a mega-dam on the river poses another significant threat to the water supply in the region, critics of the project say.

The Grand Ethiopian Renaissance Dam (GERD) has been a part of a contentious decade-long dispute involving Egypt, Sudan and Ethiopia. The hydro-electricity dam is now nearly complete and has begun filling to provide direly needed energy supply to Ethiopia. The GERD is expected to make the country a major power exporter in the region.

“Folks have never actually went to war just because of water. Now, we could be at the point in history where that changes,” says Mohammed Mahmoud, a director of the Climate and Water Program at the Middle East Institute.

In 2019, Ethiopian Prime Minister Abiy Ahmed said his country should be ready for a war with Egypt over the dispute. In 2021, Egypt and Sudan held joint military exercises to showcase security ties between the two countries in response to the ongoing conflict, the Associated Press reported.

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Egypt’s population of 109 million is projected to grow significantly in decades, further straining the demand for water in the region.

“There’ll be an imbalance in terms of less water supply and inflated demand,” said Mahmoud. “Both because of climate change, and also because of socio economic conditions and population growth.”