Heading towards Day Zero what can landscape architects do to reduce water stressed cities?

I recently posted a post on WLA (my landscape architecture blog) which aim to raise awareness of cities heading towards Day Zero such as Cape Town in South Africa who may have to progressively turn off taps in July throughout the city.

Excerpt

The city of Cape Town known as the hosting of the 2010 World Cup and known for its amazing landscape including Table Mountain has been in drought for 3 years and is heading towards Day Zeroy when dam levels reach 13.5% and the taps will be turned off in a phased approach. The government has set water restrictions at Level 6b which restricts water to 50 Litres per person as the original Day Zero date was April 12, but through the efforts of city and residents to save water has delayed Day Zero several times and is now predicted to be 15 July 2018. The city has provided guides, calculators and a Day Zero dashboard to educate residents on how to reduce water use including:

Read more at World Landscape Architecture