These Cities Aren’t Banning Meat. They Just Want You to Eat More Plants. Meat and dairy production are linked to emissions of methane, a potent greenhouse gas.

Some of the alternative aren't much better. 520 gallons of water for 1 pound of cheese. It takes 3.2 gallons for each almond, for those who choose that route for milk. You can have 1 pound of cheese or 162.5 almonds. I'd go with the cheese personally.