Explainer: Why the Grand Ethiopian Renaissance Dam worries Sudan and Egypt

The Grand Ethiopian Renaissance Dam (GERD) is a major infrastructure project in Ethiopia aimed at creating jobs and boosting energy exports. It will be 1780 meters long and 145 meters high, with 16 turbines generating 6000 megawatts of electricity, quadrupling Ethiopia's current capacity. The dam's reservoir can hold 75 billion cubic meters of water, giving Ethiopia control over 85% of the Nile's flow. This has raised concerns in Sudan and Egypt, who rely on the Nile for water and agriculture, viewing GERD as a potential threat.

What percentage of the Nile's water flow does Ethiopia control due to the GERD?

Which two countries rely on the Nile for fresh water and agriculture?