Ongoing climate warming is heating the subsurface. Projections suggest that by the end of the century millions of people will live in areas where groundwater exceeds the highest threshold for drinking water temperatures.
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Klepikova, M. Groundwater warming. Nat. Geosci. 17, 487–488 (2024). https://doi.org/10.1038/s41561-024-01461-x
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DOI: https://doi.org/10.1038/s41561-024-01461-x