Think eco-tourism can only apply to a no-frills jungle trek? Whether you're planning an Amazon adventure or a tropical honeymoon, you can still travel conscientiously.

Chris Mackay, an avid traveler, is co-founder of Crooked Trails, a local nonprofit dedicated to responsible international tourism. "Tourists use an unbelievable amount of resources," she says. "We also create a huge amount of garbage, and many countries don't have the infrastructure to deal with it."

Aside from simple choices like turning off the lights, reusing towels and not cranking the air conditioning in your hotel room, ask about a hotel's environmental and social policies as well as staff working conditions before your book.

Mackay, who organizes community based tours, also recommends resources like ResponsibleTravel.com and The International Ecotourism Society for travelers seeking tours, lodging and services. Travel guides like Lonely Planet will also provide honest reviews and eco-travel tips, she says.

Support the local economy by avoiding chain restaurants, choosing local transportation and buying souvenirs made by local artisans. Planning a tour? Make sure operators hire locally and think ecologically--after all, why take a whale-watching tour that displaces native workers and pollutes the water?

And finally, watch what you pack. Opt for waste-savers like rechargeable batteries and reusable water bottles whenever possible (use a filter for safety where water quality is a concern).

"Responsible travel means you take time to figure out what the repercussions are of you being in that country," says Mackay. "Also, understand the culture that you are going to see--learn something about the people, their language, their religion. You will enter with a greater appreciation."

Learn more about Crooked Trails on their website. Get more eco-travel tips here. Want to offset your flight before you've even landed? Visit Native Energy or Carbonfund to purchase carbon offsets. And if you're looking for other ways to better the communities you visit, check out Travelers Philanthropy.