Should you choose the pasta or the steak?
A tonne of grain needs at least a 1000 tonnes of water to produce it. But it takes sixteen times as much water to raise a tonne of beef says Tony Allan in his very important book Virtual Water.
As 80 per cent of all water consumption goes into food production, nothing at all is as important as our food-consumption habits.
Overnight, we could find almost all the extra water we need to meet the requirements of the peak population predicted for 2050. How! By going vegetarian! That’s all it would take! We would have solved the bulk of our water dilemma with four decades to spare he says.
Being vegetarian is also a healthier choice.