Taking your dog hiking is a great green activity, as long as you guys follow the “leave no trace” doctrine (i.e. don’t leave doggy-doo, human or doggie snack remnants, bloodied animals your dog “played” with, or fragile plants with broken branches or stems trampled by an overzealous pooch). Here are some other great ways to keep your dog Earth-friendly: 1. Do some research into leashes. Retractable leashes are excellent for travel because you can give dogs their run, or hold them close by. 2. Make sure you go with some sort of container for doggy-do. Bags are available that clip conveniently onto retractable leashes. 3. Make sure you have a source of water for your pets at all times. 4. Never leave a pet inside a car with the windows completely closed. <!-- HIDDEN JAVASCRIPT HTML --> <form id="newsletter_pop_form" name="newsletter_pop_form" action="/newsletters/" method="post"> </form>