Some positive changes came from this smog. Some of the positive changes are that the British Government moved factories outside of the cities. The British Government also helped people get cleaner heating systems so they would not use coal. Not only did London, England change some things, but so did America. We can continue to have clean air by making a few changes. One way is when going somewhere, use another source of transportation other than cars.Another way to help is by planting trees to improve air quality. We