Great start on your site!
Another way that people can reduce transportation and eat smarter is to "Eat Locally."
Here's a link from about.com to help jumpstart the thought...
SixLinks Developers' response:
Thanks for the compliment and suggestion. We have looked at this issue once before and are looking at it again, since I know a lot of people may wonder why we don't have that issue up on the site. The short answer is because it's really complicated and there are a lot of other things that come into play besides how far the food traveled. We will be posting an FAQ question on this soon, but here's the general thoughts of what we've found in our research so far:
There are a lot of things that go into the carbon-cost of a food, including food-miles traveled, by what means the food traveled, processing, storage, how the food was grown, how you get to the food, and what the food is. We focus on what the food is because it's a little more straight forward (less beef, more chicken or better yet, veggies), but even this is complicated.
The questions that you have to bring up, and we are trying to get more information on, are things like "Is it better to eat local food that was grown conventionally or organic food that was flown in?" "If you do eat out of season, is it better to store or grow that food in climate-controlled spaces or ship it from a place it is in season?"
General guidelines we can say for sure are that you should try to eat in season foods, eat minimally processed and packaged foods, eat low-energy foods, do your grocery shopping while making as little CO2 as possible, and grow as much of your own food (sustainably) as possible. For the rest of it, keep your eye out for an FAQ item, and let us know if you have any other comments or suggestions!