One of the increasing sources of air pollution are factories. Like cars running on fossil fuels, they both consume mass amounts of unsustainable energy. As an unfortunate result of this, a few problems have arisen. Firstly, the more fossil fuel we consume the more it decreases. Maybe the main problem, the air quality in our ecosystem will result in heavy damage to many of it's parts. Oxygen quality will decrease. To improve this, things such as windmills, solar panels and other producers of energy should be used.