Pollution
Pollution is one of the biggest man-made problems. They are many different ways of causing pollution. Burning fossil fuels is one thing that causes pollution. Fossil fuels are fuels made of organic matter such as coal, or oil. Some of the most common ways is through burning fossil fuels. We need to burn fossil fuels to produce electricity which is used by 80% of the US population. As the US also being the world 2nd largest energy consumers, not only is a lot of carbon dioxide being produced, but it is also constantly getting into the atmosphere. The burning of fossil fuels produces around 21.3 billion tones of carbon dioxide per year world wide.