Paul McCartney's estranged wife Heather Mills Monday accused consumers of meat and dairy products of fueling global warming, as she launched a vegan campaign at London's famous Speaker's Corner.
Mills, who is engaged in an increasingly bitter divorce battle with the former Beatle, suggested that people could drink the milk of rats or cats, rather than milking cows.
Viva, an animal rights campaign group, claims that dairy and meat products are major causes of greenhouse gases.
"There are fields and fields of grain just miles from starving children in Africa, being shipped to Europe to feed our livestock," she said, unveiling billboards for the campaign at the Hyde Park corner site.
"There are 25 alternative milks available in health shops and supermarkets," she added, saying she turned vegan when an African woman at Live 8 asked her: "Why don't people stop drinking cows' milk lattes?"
"Why do we not drink rats' milk, cats' milk or dogs' milk?"