Ms. Mills obviously holds the environmental bonuses to Fat Tony's money-making ideas in very high regard. To put it another way; Paul McCartney's ex is endearing herself to the public further by going one step beyond Sheryl Crow's suggestion that we use detachable diners sleeves instead of napkins. You ready? OK, Mills wants us to combat the environmental issues rampant farting cows raise, by drinking alternative sources of dairy. Not goats' milk or sheeps' milk - no - those who watch The Simpsons regularly will now be guessing correctly that it is in fact rat milk that she would like us to use an alternative. The former model - who just happened to arrive to give her lecture in London's Hyde Park in a not-so-environmentally-friendly 4x4 Mercedes yesterday - ranted: "Why don't we drink rats' milk, cats' milk or dogs' milk? The startling truth is that animals farmed for meat and dairy are now one of the greatest threats to the planet. The easiest and most effective way of cutting our contribution is to change our diet and go vegan. It is that simple." So there you go everybody - if you're not willing to locate a miniature milking machine and pounce on the nearest street vermin, just ditch the dairy altogether and hire a personal chef to make all things vegetable a culinary delight.