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)

Zira the Corgi went on a shopping spree, and the internet couldn't handle it

The science behind how catnip seduces cats

Kodak the dog had a rough start, but it's all blue skies from here

Airlines crack down on support animals

11 things you didn't know about alpacas

All eyes on the ball dogs at Champions Tennis

Buster the lonely dog finds his happy place

Is your dog scared of fireworks? New drug may help relieve anxiety

Why do we want to squeeze cute things?

Exuberant digging dog unearths 13,000-year-old woolly mammoth tooth

Does your dog need winter clothes?

Sully, George H.W. Bush's service dog, has a new mission