The average two cars that your family tootles around in contribute about 40 percent of your family’s 48,800 pounds of carbon dioxide (CO2) each year (see below). Check out how your car’s emissions stack up, and consider switching to a sedan, a hybrid or an electric vehicle to lighten your CO2 load. Then, take two minutes and switch your home to green energy and you’ll be part of the solution. These individual actions can’t come at a more critical time for our climate. The planet just hit historic CO2 levels.