Paul McCartney doesn't ask for much: Buy an album, see a concert, and stop eating meat on Mondays.

The former Beatle has released a video endorsing the "Meat Free Monday" campaign, according to Rolling Stone. McCartney, a vegetarian, and the campaign hope to lower global greenhouse gas emissions this way and bring the problem to the attention of world leaders who will meet in New York next week (Sept. 23) to discuss climate change, the Meat Free Mondays website states.

According to the United Nations Food and Agricultural Organization, meat production causes 14.5 percent of global greenhouse emissions. It's been five years since world leaders have met for a climate summit, and ideas to help are being accepted in advance of the climate treaty conference scheduled for next year in Paris. Enter McCartney's plea.

"Hi there, Paul speaking. Listen, I need your help," the musician says in the clip below. "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. That's all you need to do, I need your help. Please do it. We'll send all these pledges to the politicians and then they'll do something about it." Of course, McCartney ends up turning his call to action into a tune as well.

Sir Paul released his sixteenth studio album, New, last year and the album peaked at three on the Billboard 200 with help from the lead single "Queenie Eye." "New feels energized and full of joyous rock & roll invention," Will Hermes wrote for Rolling Stone about the album. "More than a sentimental journey, it's an album that wants to be part of the 21st-century pop dialogue."

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