pet dog
Pets — some of life's greatest sources of joy, love and, at times, frustration — can add up to a large carbon [paw]print. Since the pet products market has expanded from collars, food and litter to apparel, accessories, baked goods, fitness classes and much more, the impact pets have on the environment has grown. From cats and dogs to rabbits and horses, become a green pet owner with MNN's tips and ideas in the articles below. (Photo: Flickr)

Dogs are the secret weapon to staying active

A horse named Jenny takes a daily stroll through the streets of Frankfurt

How do lost dogs find their way back home?

How one runner turned a nagging guilt into an ego boost for shelter dogs

Should you let your cat outside?

Saving shelter cats with a high-five

You don't need a 'Game of Thrones' dire wolf

13 secrets to managing dog and cat hair

A shelter dog who can't stop shaking his head charms his way to a new life

6 medical conditions that dogs can sniff out

13 mostly indestructible dog toys

That time scientists put a ferret in a giant particle accelerator...