You can be a more responsible pet owner by adopting rescue dogs, using environmentally friendly cleaning products without harsh chemicals, recycling pet food cans, using only organic lawn care products and lowering your carbon footprint and pawprint by walking to the dog park instead of driving.

Celebrate Earth Day, April 22, with your family as well as your pets. You can be a more responsible pet owner by adopting rescue dogs, using environmentally friendly cleaning products without harsh chemicals, recycling pet food cans, using only organic lawn care products and lowering your carbon footprint and pawprint by walking to the dog park instead of driving.

The company Planet Dog, which was started 11 years ago in Portland, Maine, has always embraced a socially responsible business plan in its pursuit of the earth-friendly lifestyle for dogs. It donates a percentage of every purchase to a philanthropic foundation that helps fund programs that encourage pet adoption and other causes. On its Web site, www.planetdog.com, you will find 44 items listed under the Eco-Friendly banner.

Some of the current Planet Dog best sellers in this category include Shammy, a chamois pet towel made from recycled wood chips that absorbs more than 10 times its weight; durable Orbee-Tuff balls and bones made of recycled materials; and naturally dyed hemp collars, leashes and harnesses.

Planet Dog also wants humans to spread the word. Their latest creation is the Green T collection of certified organic T-shirts meant to raise the profile of green living available in men's and women's sizes for $30. The shirts come printed with earth-safe phthalate-free inks with one of four messages. Our favorite is "reduce.reuse.rewoof."