The 72-year-old musician, widely considered to be one of the greatest living songwriters, made the plea for people to go vegetarian once a week, reported Guardian online.
In the video posted on YouTube, he said, "I need your help, all I want you to do is just log in on pledge.Meatfreemondays.Com and pledge your support to the idea of meat-free Mondays... Please do it. We'll send all these pledges to the politicians, and then they'll do something about it."