Here's a shocking number that speaks to the USA's love for meat (and pizza): Americans eat so much pepperoni per year that if you put the slices side-by-side, they could circle the Earth 50 times over. The fact bit comes from Bill Gates look at Vaclav Smil's interesting book Should We Eat Meat? That's, uh, a lot.
Some more interesting points that Gates raises from Smil's book:
As usual, Smil offers up some intriguing statistics along the way. A quarter of all ice-free land in the world is used for grazing livestock. Every year, the average meat-eating American ingests more than enough blood to fill a soda can .
There's also a look at how much water is needed to make a kilogram of boneless beef (it measures in the several thousands of litres) and how much meat an average US citizen eats a year (over 113kg in carcass weight).