India, March 22 -- If used properly, waste water can provide important nutrients for plant growth and act as a replacement for mineral fertilisers

In an increasingly water-scarce world, there is no doubt that recycling water we've already used has to become normal. Part of that will inevitably mean using waste water to help grow the food we need. But will we ever feel comfortable using waste water for food production?

The reality is that this is already happening but more needs to be done to keep communities safe from the dangers of using untreated waste water.

The use of waste water for food production is mainly a question of managing water shortage and socioeconomic costs. Exponential population growth and climate change have seriously...