How water-wise is your diet? A small chocolate bar takes 21 litres of water to produce. Byline: CAROLINE BLUMBERG/ EPA Brad Ridoutt, CSIRO; Danielle Baird; Gilly Hendrie, CSIRO, and Kimberley Anastasiou, CSIRO Our diets can have a big environmental impact. The greenhouse gas emissions involved in producing and transporting various […]