Top 5 Green Pet Tips

1. Adopt from a shelter
   Why buy when you can adopt one of the 70,000 puppies and kittens born every day in the United States?

2. Spay or neuter your pet
   Spaying and neutering helps dogs and cats live longer, healthier lives by eliminating the possibility of uterine, ovarian, and testicular cancer and decreasing the incidence of prostate disease.

3. Rein in your pets; protect native wildlife
   Always keep your dog on a leash when outside and confine your mangy feline indoors.

4. Swap out the junk food
   Most conventional pet-food brands you find at the supermarket consist of reconstituted animal by-products, otherwise known as low-grade wastes from the beef and poultry industries. Natural and organic pet foods use meats that are raised in sustainable, humane ways without added drugs or hormones, minimally processed, and preserved with natural substances, such as vitamins C and E.

5. Clean up their poop
   Scoop up your doggie doo in biodegradable poop bags so your buddy's No. 2 isn't immortalized in a plastic bag while deep-sixed in a landfill somewhere for hundreds of years. Cat owners should avoid clumping clay litter at all costs. Not only is clay strip-mined (bad for the planet), but the clay sediment is also permeated with carcinogenic silica dust that can coat little kitty lungs (bad for the cat). 

Source:http://www.treehugger.com/htgg/how-to-go-green-pets.html