More than 50 per cent of the world’s largest lakes and reservoirs have shrunk over the past three decades primarily due to climate change and human activities, according to a new study. From these water bodies, approximately 600 cubic km of water was lost between 1992 and 2020 — an amount equivalent to the total water used in the United States for the entire year of 2015. It also noted that more than half of the reservoirs located in peninsular India have witnessed substantial water storage decline, mainly due to sedimentation. Moreover, among the worst affected natural lakes in the...