Comment Re:And the almond trees die. (Score 5, Insightful) 417
No, installing dual flush toilets won't help, it'll barely tickle the problem.
Around 80% of all water in california is used for farming. Of the 20% that goes to residences, only about 20% of that is used for flushing toilets. A dual flush toilet saves 50% of the water 50% of the time, so that's 0.0025% of the problem you could solve with dual flush toilets.
In the mean time, our farmers make huge profit off growing ridiculous crops like rice (yes really, they grow rice, a crop that requires flooding the field, in California), and almonds. By stopping subsidising crops that are just insane to grow in an arid area, California could solve it's "drout" issue overnight. We literally could halve the state's water usage utterly trivially.