How green are you? Can you be more green? Check out Real Simple’s carbon facts to see exactly how your (small) actions can make a (big) difference.

For example…

Action: Wash Laundry on a Cooler Setting Why It’s Worth It: About 90 percent of the energy used to wash clothes goes to heating the water. Assuming you already wash half your laundry in cold, moving the other half from hot to warm can save a substantial amount of energy. Your One-Year Effect: 349 pounds of CO2 saved. The Effect If Everyone in the U.S. Did It For One Year: Equal to 3,316,442 cars taken off the road for one year.

or…

Action: Buy Green Power Why It’s Worth It: More than 50 percent of retail customers in the United States have an option of buying a green-power product from their utility. Find out if you have this option at www.epa.gov/greenpower. Your One-Year Effect: 20,508 pounds of CO2 saved. The Effect If Everyone in the U.S. Did It For One Year: Equal to 194,881,372 cars taken off the road for one year.