Egyptian researchers develop canal to reduce water waste, generate energy: Researchers at Egypt’s Nile University have created a prototype solar canal, covered with photovoltaic cells, that reduces levels of evaporation to conserve water, allowing it to be used for agriculture or to produce energy, a Reuters video shows (watch, runtime 01:16). Climate change has accelerated the rate of water evaporation, and finding a way to decrease evaporation can save 2-3 bcm of water in the Nile River, according to the video.