Yes those of us who did not already know this long-standing fact learned it yesterday. What many of us seem to have failed to absorb is that water supplies are compartmentalized in such a way that saving in one area does not necessarily improve the situation in another area. One city can run out of water while another has plenty. Many cities have dedicated water supplies that are in no way connected to nor shared with agriculture, so saving even 100% of agricultural water provides no benefit for the municipal supplies.
