California might have a similar problem if the Sierra precipitation comes more as rain than snowpack in the future. One possible solution is to re-inject water

California might have a similar problem if the Sierra precipitation comes more as rain than snowpack in the future. One possible solution is to re-inject water into aquifers in high precip years and then pump it out during droughts. If it can be done politically (the tech already exists) then this is even better than dams for water storage as evaporation doesn't happen. Currently in California people can pump as much water as they can from wells with no restriction. Some changes in the works, but until the person who pumps it in gets to pump it out or sell it, this idea will not work.