How to Choose a 'Green' Cat Litter

Flushable "green" kitty litter isn't green if you flush it down the toilet, as we recently noted, and ordinary clay litter requires mining land for the benefit of cats. So what is the best green kitty litter?

Let's first stipulate that the choice of litter depends on what the cat is willing to use, as pointed out by a top feline veterinarian, Dr. Elizabeth Colleran, president of the American Association of Feline Practitioners, who told Consumer Ally there are pros and cons to all classes of kitty litters.

Here's a rundown: