The average American eats twice as many kilograms of meat than the next nationality (last time I checked it was the British). As the article states, beef is by far the most environmentally draining; it turns out in terms of protein and calories, pork is nearly the same as beef with a much smaller amount of energy required to produce that meat. If the US had a better food culture [I'm not counting fast food here], we might be able to actually change the mindsets of the public that they dont need a meat entre with every meal.
Is that really true? More than twice as much meat as, say, the Australians, Germans and Argentinians?
update: According to http://www.guardian.co.uk/environment/datablog/2009/sep/02/m... your implausible-sounding numbers are wrong. In fact US meat consumption (at least as of 2002) is in line with the other agriculturally-rich Western countries, and well behind Denmark and New Zealand. (Australia is missing from the statistics.)