Traveling isn't always green. As Iva pointed out, it's pretty difficult to feel good about the time we spend in planes. And the UN calculates that in 2007 there were about 900 million international travelers; that means travel is having a bigger and bigger impact on the environment. Beyond giving up travel altogether, what can we really do in order to make our favorite pastime greener?

The ladies over at Go Green Travel attempt to answer just that question today as they kick off their 25 Days to Green Travel series. The series will cover the basics; the who, what, where, when, why and how of green travel. Over the next 25 days they will post about green ways to prepare for a trip, green things to do while traveling, and even what do to on your return trip home.

In honor of Earth Day, the series' first post is entitled 31Reasons to Travel Green: In Pictures. If you have ever had any questions over why to travel green, this gives a pretty poignant visual answer. Do yourself an Earth Day favor and check it out here.

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