From California’s Central Valley to the croplands of Iran, groundwater depletion has accelerated over the last four decades across the world’s arid food-producing regions. In many parts of the western United States, India, Chile, Spain, Mexico and other countries, groundwater levels have been rapidly declining as water is heavily pumped to irrigate farmlands, according to a new study analyzing measurements from 170,000 wells in more than 40 countries. The research, published in the journal Natur
Groundwater is rapidly declining across the globe, often at accelerating rates. Writing in the journal Nature, UC Santa Barbara researchers present the
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Global groundwater decline UC Santa Barbara Assistant Professors Scott Jasechko and Debra Perrone recently published a paper analyzing data from 170,000 monitoring wells and 1,693 aquifer systems across over 40 countries, showing that globally, there is extensive and rapid groundwater level decline, particularly in dry regions with large-scale croplands. The researchers compiled groundwater level data