New Global Study Suggests Climate Change Will Alter Groundwater Recharge Rates

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New Global Study Suggests Climate Change Will Alter Groundwater Recharge Rates

The Study looked at Europe, North America and the Middle East to conclude that current hydrological models are too broad in scale to adequately consider the subsurface heterogeneity which drives groundwater recharge. In failing to account for this heterogeneity, current models are inaccurately predicting the water recharge capacity of areas when responding to climate change. The study concludes with discrediting current modelling on groundwater recharge, finding that actual recharge rates are up to ‘four times larger for present conditions and changes up to five times larger for potential future conditions than previously estimated.’[1]

[1] Andreas Hartmann et al. Enhanced groundwater recharge rates and altered recharge sensitivity to climate variability through subsurface heterogeneity, Proceedings of the National Academy of Sciences (2017)

 

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