CLIMATE-COP27-UN-EGYPT-SUDAN-ETHIOPIA-UGANDA-NILE

This picture taken on October 23, 2022 shows a view of the well and measuring column of the historic Cairo Nilometer, the structure used to measure the Nile river's clarity and water level during the annual flood season, originally dating to the Abbasid-period in 861 with additions from an Ottoman-period restoration in 1825, on the island of Manial in the centre of Egypt's capital Cairo. - The Pharaohs worshipped it as a god, the eternal bringer of life, but the clock is ticking on the Nile. Climate change, pollution and exploitation by man is putting existential unsustainable pressure on the world's second longest river on which millions of Africans depend. (Photo by Amir MAKAR / AFP) (Photo by AMIR MAKAR/AFP via Getty Images)