The mighty Nile, threatened by waste, warming, mega-dam

A general view of the Blue Nile river as it passes through the Grand Ethiopian Renaissance Dam (GERD), near Guba in Ethiopia in this photo taken on December 26, 2019. PHOTO | EDUARDO SOTERAS | AFP

Early one morning in Cairo, volunteers paddle their kayaks across the Nile, fishing out garbage from the mighty waterway that gave birth to Egyptian civilisation but now faces multiple threats.

Egypt's lifeline since Pharaonic days and the source of 97 per cent of its water is under massive strain from pollution and climate change and now the threat of a colossal dam being built far upstream in Ethiopia.