In many countries, people are trying to reduce the use of fossil fuels like coal, oil, and gas. These fuels are used to make electricity and run cars, but they also produce a lot of carbon dioxide. This is bad for the environment and causes global warming. To reduce fossil fuel use, some countries are building more wind and solar power plants. These clean energy sources do not produce carbon dioxide. People are also using electric cars and riding bicycles more often. Schools are teaching students about energy problems so they can think about the future. If everyone works together, we can protect the Earth and make a cleaner world for the next generation.