Using data from NASA Satellites, a research team of international scientists has observed a sudden drop in freshwater that started in 2014 and has persisted since then.

The Gravity Recovery and Climate Experiment (GRACE) satellites revealed a drastic decline in global terrestrial water storage, or TWS, between May 2014 and March 2016. The scientists warned that those water levels have still not recovered as of 2023. They shared their findings in a study published in the journal Surveys in Geophysics.

From 2015 through 2023, surface and groundwater levels were about 290 cubic miles below the average stored freshwater levels from 2002 through 2014, NASA reported. According to Matthew Rodell, a co-author of the study and a hydrologist at NASA’s Goddard Space Flight Center, the amount of water lost from 2015 onward was about 2.5 times the volume of Lake Erie.

The freshwater depletion was driven by drought and exacerbated by the 2016 El Niño event and the increasing modern agricultural and municipal demand for water. The team behind the study also predicted that global warming is playing a part in the declining freshwater levels.

The start of the declining […]