This essay will describe energy conservation and explain how to reduce pollution. Energy conservation refers to reducing energy consumption through using less of an energy service. Energy conservation differs from efficient energy use, which refers to using less energy for a constant service. For example, driving less is an example of energy conservation. Driving the same amount with a higher mileage vehicle is an example of energy efficiency. Energy conservation and efficiency are both energy reduction techniques. Even though energy conservation reduces energy services, it can result in increased environmental quality, national security, personal financial security and higher savings. It is at the top of the sustainable energy hierarchy. It also lowers energy costs by preventing future resource depletion. So energy is important to living organisms, as well as the changes that have occurred on Earth in many different aspects. Ways to reduce pollution such as renewable energy especially energy from nature, such as solar energy wind energy, water energy and etc. Use tools and equipment such as high-efficiency appliances, skinny tube 5 extensions, power, etc. If you want to travel from far distances that works as a daily shortcut should be used. The last ,you should examine the car all the time and before travel.