Do we have to be vegetarian to slow climate change?

Did you know that in the 1850s in the US, pretty much every family had a cow?

In fact, the word cattle etymologically comes from chatel, old French for “property.” Having a cow was the definition of wealth and status. You definitely did not want to kill your cow to eat it unless you were very, very well off. Since the invention of burgers in 1904 at the World’s Fair in St Louis, cows and beef have taken on a very different symbol. Today, McDonald’s can make 2,000 cheap quarter pounders out of just one cow. Just look at how our consumption of beef per person has…