SAVE MONEY ON TRAVEL DEALS

The campaign, which encourages people to help slow climate change by having one meat free day a week, has already gathered support from Chris Martin, Jeff Koons, Alec Baldwin, Woody Harrelson, Doris Day, Sheryl Crow, Kevin Spacey, Kelly Osbourne, Zac Goldsmith, Gillian Anderson, Jake and Dinos Chapman, David de Rothschild, Monty Don, Sam Taylor Wood, Sharleen Spiteri, John Frieda and Ricky Gervais, organizers said Monday.

The U.K. Food Climate Research Network estimates food production is responsible for between 20 percent to 30 percent of global greenhouse gas emissions and says livestock are responsible for around half of these. Livestock production releases gases such as methane and nitrous oxide into the atmosphere and have a much more powerful climate changing effect than CO2, campaign organizers said in a release.

"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 in a statement. "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. For instance it not only addresses pollution, but better health, the ethical treatment of animals, global hunger and community and political activism."

The campaign is supported by Linda McCartney Foods and has a dedicated Web site at www.supportMFM.org.

 BREAKING STORIES

Take That singer Owen enters rehab

Winslet and Mendes separate

Tiny apartment worth up to $273,000

Half-male and half-female chickens studied

Two members will miss Hollies induction

Barrymore 'happier now than ever'

Skeletons ID'd as beheaded Viking raiders

BBC criticized for Facebook course

Malkovich to star in London play

Mother birds communicate with eggs

Study: Oral contraceptives cut cancer risk

Anna Nicole opera to be staged in London

Wright to direct Ronan, Blanchett in film

TV host driving 210 miles in coffee car

Starling deaths in yard 'a mystery'

Python on the loose in English city?

New, tough material is created

Immune system cells use membrane nanotubes

Potential new source for biofuel found

'Doctor Who' star Smith going on bus tour