ABSTRACT

Most of the world's governments and international agencies have committed themselves to the Millennium Development Goals, one of which is to achieve environmental sustainability (see https://www.un.org/millenniumgoals/" xmlns:xlink="https://www.w3.org/1999/xlink">www.un.org/millenniumgoals/). A water target set in relation to ‘environmental sustainability’ is:

To halve, by 2015, the proportion of people without sustainable access to safe drinking water.