Other factors in the shortage of water are..a government that sat on its hands through at least four years of water famine then had the cheek to say its gods fault for the lack of rainfall.
An increase in construction and thereby population without any thought to the infrasructure required.
forward planning like constructing another dam.
Building houses without any form of guttering so that rainwater when it comes can be used for watering plants or washing down pavements, instead of all going down the drain.
(incidentally car washes usually recycle their water)
A percentage of the population that will carry on wasting water whatever.....some call it custom, but some would call it lack of thought for their fellow community members..
Water is the basic need for all forms of life.. think about where we would be now if Greece could not supply us ???? not so much Kataklysmos more catastrophe.
Welcome to the 21st century folks...
BOF