Make Your Bed with Bamboo
If you're in the market for new linens, consider a sustainable material like bamboo. The fast-growing plant is cultivated without pesticides and requires less water than conventionally grown cotton. Bamboo sheets look and feel like satin, wick moisture, and are naturally antimicrobial.

Become a Locavore
There's a reason the Oxford American Dictionary made this term-defined as someone who eats only food grown or produced within a 100-mile radius-its word of the year. The average American meal travels 1,500 miles to the plate. When you consider how much fuel is consumed and greenhouse gases are emitted as a result of that travel, eating foods grown closer to home is a smart move for the planet.

Be Selective About Seafood
It's vital to know how and where the fish you're ordering was caught and how well the populations are doing, so you'll have that fish well into the future. Seek out varieties that are low in contaminants, like mercury, PCBs, and dioxins, and have been caught with hooks and lines (which has a minimal impact on the ocean habitat). Consult nrdc.org/mercury or seafoodwatch.org for tips on choosing healthy, sustainable fish.

Commit to COmposting
By keeping food scraps like fruit and vegetable waste out of landfills, you can reduce greenhouse gases on two fronts. One of the benefits of composting is that it can replace petroleum-based fertilizers, which generate pollution and contaminate the water supply. Get a backyard bin, such as the Gaiam Spinning Composter ($179; gaiam.com), or place a trash can-size container like Naturemill's composter ($300; naturemill.com) in your kitchen.