Nowadays people travel in many ways, such as walking, cycling, taking buses and cars. Different means of transportation have different effects on our lives. More and more cars make the air in the city worse and worse. We should drive less and make our city more beautiful. The biggest reason why people drive is convenience, which greatly reduces the time spent on the road, but it also pollutes the air seriously. The environment has a great influence on our life. We should try our best to protect our planet and the environment around us. For example, reduce the use of cars, travel by bus or bike, the distance is short, you can walk, etc ... Now, environmental pollution is getting more and more attention, and we should start from ourselves and contribute our own strength to protecting the environment.