Study: Go veggie or face global famine

Tofu and salad to save us from extinction, anyone? They may be the only hope for continuing life on the planet, according to the world’s leading experts on water.

Issuing one of the sternest warnings yet about global food supplies, scientists warn that the world’s population may have to switch almost completely to a vegetarian diet over the next 40 years to avoid catastrophic shortages and widespread famine.