WHAT IF...We could redesign human teeth to encourage vegetarianism?

Susana Soares

Recent research into the effects of eating meat on global warming estimated that meat production accounts for nearly a fifth of gas emissions. Recently the UN appealed for a radical shift in diet, arguing that it wouldn't only be good for our health, but for the planet in general.  Teeth are an essential tool for nutrition - their shape is related to diet. Herbivore animals, for example, have developed teeth that reflect their feeding preferences and facilitate the consumption of plant material.
Could our teeth structure be replaced to encourage a more sustainable dietary shift?