Apparently, in the today's world, the depletion of fossil fuel is a hotly-debated problem in most nations all over the world.There's no argue that fossil fuels and non-renewable sources play a vital role in our daily life. They include oil, coal, natural gases, which produce energy and can be seen in every part of life.However, people are using it too much and they are running out, which may make a severe energy crisis around the world. Pollutants released during burning fossil fuels cause air pollution, which affect people’s health and humans’ life. To prevent this from happening, there are some following suggestions. First and foremost, by walking, cycling and using public transport instead of cars or motorbikes, you can somehow save a large amount of fossil fuel. Besides, don’t waste energy, turn off lights before going out or switch off appliances when you don’t use them. Secondly, scientists and government should do research and expand the use of renewable sources such as wind power, solar energy or wave energy, etc. These powers are not only sustainable but green and not produce waste. Finally, awareness should be raised among citizens, especially in education and neighborhood. To sump up, fossil fuel will no longer a problem if we're all joined to help to save it.