Check your carbon footprint now and take steps to lower it!
Shop at sites like Etsy, who is offsetting all of their shipping.
Eat less meat; read this article about making it easier and all the money you'll save!
Donate to a Pax Natura Foundation Project of your choice.
Start a Roots and Shoots program in your neighborhood or local school.
"Anything else you're interested in is not going to happen if you can't breathe the air, or drink the water. Don't sit this one out, do something now." Carl Sagan