/kloc-for more than 0/00 years, the reason for the increase in energy consumption is the increasing population, which naturally requires the consumption of more oil and coal. Second, with the continuous progress of manufacturing technology, people's labor productivity is constantly improving, producing more goods and naturally consuming more energy. Third, with the progress of the times, the energy consumption of individuals and families has increased, high-power appliances such as air conditioners and microwave ovens have increased, and the number of people using cars has increased. These factors have led to a sharp increase in coal and oil consumption.