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)

12 studies that prove pets are good for your health

Houtong Cat Village: A cat lover's paradise

'Happiest dog in Scotland' has found a home

3 awesome examples of humans forming a chain to save a dog

Should intelligent animals have human rights?

Denver outlaws cat declawing

22 things you didn't know about hedgehogs

When stray cats domesticated me

Nobody does a snow day like these corgis

21 puppies get a taste of service dog training

How does a dog see the world?

Paddles, the first cat of New Zealand, has died