This is a lesson in how Israel overcame a drought which caused the people in that country to totally change their lifestyles, even down to how long they could shower. Plants in gardens were suddenly artificial as were lawns. Cars were not allowed to be washed and on and on. That was six years ago. Now there is plenty of water and the reason is the invention of ways to desalinate salt water from the Mediterranean Sea and recycle waste water.
This is nothing short of amazing, from drought to plenty of water in 6 years. Maybe people who could make similar things happen in California are over in Israel seeing how to make them back home.