Treatment rates are still low in many developing countries.
Most of the wastewater produced worldwide receives no treatment and the nutrients in wastewater go to waste. Here's how households can draw these nutrients from urine and use them as fertilisers.
To continue to sustain or grow populations — and economies — more is going to have to be done with the same amount of water, or even less.
Damage to septic tanks is one of the major health hazards people face when they return to their bushfire-affected homes. It was simply dumb luck a disease outbreak didn't happen last summer.