2. Businesses, governments, and individuals can limit greenhouse gases by adopting different methods. Recycling household waste can save 2,400 pounds of carbon dioxide every year. Using less heat and air conditioning by a mere 2 degrees can save up to a substantial 2,000 pounds of carbon dioxide. Driving less leads to fewer fossil fuel emissions and every gallon of gasoline not burned saves 20 pounds of carbon dioxide. This may not seem like a large amount but millions of people drive their cars everyday. Replacing regular light bulbs with compact fluorescent light bulbs can save 90 billion pounds of carbon dioxide if everyone switched in Canada alone. Under cap and trade, lawmakers establish a limit on the overall amount of greenhouse gases