Around the world, cars pollute. There are many different models and brands of cars. Cars can burn either regular or premium gas. Usually the bigger cars produce more pollution since they burn more gas. Smaller cars need less gas and produce less pollution. To stop pollution, people have many different ideas to reduce car emissions.

Pollution is very important.

Pollution impacts the world because it spreads many chemicals such as particulate matter (PM), Hydrocarbons (HC), Nitrogen oxides (NOx), Carbon monoxide, and more. Pollution harms many living organisms on Earth. It effects trees, animals, and our human health. If pollution doesn't get reduced soon, these chemicals will cause bigger problems.

Air pollution damages crops, forests, animals, and water. Over time, pollution starts to ruin the environment and our air. For example, in China, there is a major problem causeed by pollution. According to Huffpost, the World Health Organization said in the year 2016 that 7 million people die annually because of exposure to polluted air. China has struggled for years to control its air pollution problems, which are mostly caused by the burning of coal in factories and power plants. Increased vehicle use caused more pollution. This is a big problem and people have to wear protective masks outside.

The definiton of global warming is a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide and other pollutants. The temeratures all over the earth are rising.