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LONDON (Reuters Life!) - Former Beatle Paul McCartney has launched a "Meat Free Monday" campaign in Britain in a bid to help combat climate change.
McCartney, his daughters Stella and Mary and celebrity guests including Yoko Ono walked the green carpet in London's St. James's Park to support the campaign calling for people to eschew meat one day a week.
The campaign has already been launched in the United States and Australia.
U.N. reports show that the livestock sector accounts for around 18 percent of greenhouse gas emissions blamed for global warming, more than the transport industry.
Eating less beef, pork or chicken is often advocated as a way to cut emissions.
"I think many of us feel helpless in the face of environmental challenges, and it can be hard to know how to sort through the advice about what we can do to make a meaningful contribution to a cleaner, more sustainable, healthier world," McCartney said on the campaign's official website.
"Having one designated meat-free day a week is actually a meaningful change that everyone can make, that goes to the heart of several important political, environmental and ethical issues all at once," he added on www.supportmfm.org.
"For instance it not only addresses pollution, but better health, the ethical treatment of animals, global hunger and community and political activism."
McCartney's late wife Linda, who died in 1998, was a prominent vegetarian and animal rights campaigner, and a line of meat-free meals bearing her name is still sold.
Reporting by Mike Collett-White, editing by Paul Casciato