The Daily Green and NRDC put together a list of things that you can give up for Lent (or just because!) to help the environment. Our favorite is this easy one:
Give Up 2 Degrees
Electric power plants are the country's largest industrial source of the pollutants that cause global warming. By snuggling under a blanket on the couch on a snowy winter night instead of turning up the heat, or enjoying the breeze from a fan in the height of summer instead of turning up the air conditioning, you can save pounds of pollution, as well as some money off your utility bills. Set your thermostat in winter to 68 degrees F (20° C) or less during the daytime and 55 degrees F (13° C) before going to sleep or when you are away for the day. And during the summer, set thermostats to 78 degrees F (26° C) or more.