Avoid Short Car Trips. Ride a bike. A car emits 40 percent more carbon dioxide per mile when it's run with a cold engine. Better yet, walk, or use public transportation. Plant a Tree.
Trees remove carbon dioxide from the atmosphere, produce oxygen, and provide shelter.
Use Green Power. If all U.S. rooftops were covered with solar singles, they could supply half to three quarters of the country's energy needs. Don't Flush so Much. Use less water.