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by a34729t 22 days ago
India uses something like a quarter of the world's groundwater. 20 years ago, it was all open channels, which lose 40-80% of water due to evaporation and seepage. Mexico and Egypt fixed this decades ago.

Nowadays, farmers have shifted to directly using groundwater, and just pump as much water as possible from wells (thus depleting them). This is exacerbated by: 1) Relying on flood irrigation (ie just let water flow across the field and evaporate, vs drip) 2) As temperatures rise, using even more water

The situation was already pretty dire, and despite various efforts, it's getting much worse.

https://fse.fsi.stanford.edu/news/indian-groundwater-depleti...