Whether you’re packing it up and heading out of town for a weekend with family and friends or sticking around and planning your own feast, there are a number of things you can do to show some gratitude to the Earth and make your festivities a little more sustainable this year. All together now! — There’s something to be said for gathering people together under one roof, using energy in one place instead of multiple houses. Bonus points for carpooling to get there.   Buy local and in season — Ever notice how yams aren’t really so popular in the summer? Eating seasonally around this time of year is almost built-in to the holiday, since Thanksgiving stems from the Fall harvest tradition. That said, your yams could be trucked into your local grocery store from halfway across the continent. Try hitting up a local farmers’ market, and check your food labels. Buy organic if you can. It tastes better, is better for your health, and bees everywhere will thank you.   Use re-usab...