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Crucial messages from coordinating lead author of the water chapter in the just-released IPCC report explain how we adapt to an intensified water cycle.
In August 2021, the Intergovernmental Panel on Climate Change (IPCC) released its report of working group 1. It reiterated that human-caused greenhouse gas emissions are almost entirely responsible for global warming. As a result of climate-induced warming, the global water cycle has intensified. The water cycle is the continuous movement of water through evaporation, precipitation, condensation (rain, snow), infiltration (seeping into the ground and into aquifers), and subsurface flow. The intensification of the water cycle means, broadly, more extreme rainfall as well as worse droughts, while parts of the ocean – the major reservoir of water – will become fresher and others saltier. The extremes will become more extreme.
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