A United Nations report in September 2026 warned that the world's water cycle is swinging between extremes, driven partly by which climate phenomenon?

Explanation: A United Nations report warned that the world's water cycle is swinging from one extreme to another, with El Nino threatening to unleash droughts in some regions and devastating floods in others. The World Meteorological Organization tracks these hydrological extremes annually. For CSS Environmental Science and Current Affairs, aspirants should be able to distinguish El Nino from La Nina, explain ENSO mechanics and link them to Pakistan's monsoon variability and flood risk.