It takes 21 litres of water to produce a small chocolate bar. How water-wise is your diet? | Brad Ridoutt

It takes 21 litres of water to produce a small chocolate bar. How water-wise is your diet? | Brad Ridoutt

There is a big focus on food that produces the most emissions, but the water-scarcity footprint also has a huge environmental impact

Our diets can have a big environmental impact. The greenhouse gas emissions involved in producing and transporting various foods has been well researched, but have you ever thought about the water-scarcity impacts of producing your favourite foods? The answers may surprise you.

In research recently published in the journal Nutrients, we looked at the water scarcity footprints of the diets of 9,341 adult Australians, involving more than 5,000 foods. We measured both the amount of water used to produce a food, and whether water was scarce or abundant at the location it was drawn from.

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