The first step is understanding how much carbon your household emits now. A few online tools can help you measure: The . Environmental Protection Agency, for example, has a carbon footprint calculator that tells you how much CO2 you contribute each year based on activities such as home heating, driving, and recycling. In the United States, the average emissions per capita are about 17 metric tons (37,400 pounds) per year. Other groups, including University of California, Berkeley , the Global Footprint Network , and the World Wide Fund for Nature-UK have their own versions of calculators.
There are some things you can do to help keep the air cleaner. Generally, it's important to conserve energy because sources of energy like electricity, diesel, gasoline, and wood would contribute to air pollution. Rather than driving a car or riding a motorcycle, you can ride a bicycle or walk to perform errands. Try to reduce trips and use public transportation. Gas-powered garden equipment should be avoided as well as the burning of trash, leaves, and other materials. It's also a good idea to perform regular car maintenance and engine tune ups, making a point to replace the car's air filter and oil on a regular basis. If everybody does the small things to reduce air pollution, the environment would benefit collectively.