#4. Petra Nemcova
Veg Cred: After going vegan in 2007, the supermodel admitted, "I became quite green... I have a very strong connection to nature... and I read that if we fish the way we fish, in 2048 there will be no more fish left, which is pretty soon. So it's a statement." And if we keep going through tissue boxes every time we look at pictures of her, there will be no more trees. Oh well.