There are things that could be done both for residential use and commercial use that could reduce how much water is needed without causing a catastrophe.
Many years ago, as a kid, I read an article about experiments in the Middle East to create a small basin for individual plants (like trees) that would be the right size for holding rainwater and keeping it hydrated without risking root-rot.
Think about how a shower is slightly slanted such that all the water goes to a drain in the corner. Instead of a drain in the corner, you have a plant in that corner. The basin is just a depression in the soil, with mounded up slow walls made from soil.
In the residential sector, you can google "earth ships" for ideas about things currently available that would put less stress on California's water supplies.
Many years ago, as a kid, I read an article about experiments in the Middle East to create a small basin for individual plants (like trees) that would be the right size for holding rainwater and keeping it hydrated without risking root-rot.
Think about how a shower is slightly slanted such that all the water goes to a drain in the corner. Instead of a drain in the corner, you have a plant in that corner. The basin is just a depression in the soil, with mounded up slow walls made from soil.
In the residential sector, you can google "earth ships" for ideas about things currently available that would put less stress on California's water supplies.