Explore greener pet products for the furry friend in your life. Don't be a bad kitty owner by adding to the 2 million tons of non-biodegradable cat litter that end up in landfills annually. Traditional litter is made from clay, which is collected through a destructive strip-mining process that harms acres of land. Instead choose litter made from recycled newspaper, corn cobs, wheat and other sustainable, biodegradable materials.