Cape Town South Africa is facing the third year of an unprecedented drought. Water levels have dropped to such levels that city officials predict the city wells will run dry sometime in 2019. There is, of course, a ban on filling your swimming pool or washing your car and individual consumption is limited to 50 liters/day.

In order to “raise awareness” the local government has created The Water Map where anyone can see how much water their neighbors are using.

Dark Green is within limits, Light Green is over

Zara Nicholson, spokesperson for the Mayor, said, “This behaviour-modification tool attempts to acknowledge good savers and encourage those who have yet to join the efforts.”

So far there’s been no mob-based Mad Max event and city officials say that consumption has fallen.