This is a great article about many of the challenges facing our species and world, and how a poor choice of diet is the biggest cause of these problems.
Below are selected quotes from the article, along with a copy of the footnotes. You should read the entire article. Note that the article is on three pages.
We have only a few years left, at best, to make radical changes to save ourselves from ecological meltdown. A person who is vegan will save 1,100 gallons of water, 20 pounds CO2 equivalent, 30 square feet of forested land, 45 pounds of grain, and one sentient animal’s life (13) every day. We do not, given what lies ahead of us, have any other option.