It's about oil, oil is a fossil fuel. Most of the oil extracted today has been occur from prehistoric organisms whose remains settled at the bottoms of oceans and lakes millions of years ago. As layers of sediment covered them, the pressure on them increased which in turn increased the temperature. This process changed their chemical composition, eventually transforming them into oil. Oil is used for heating and transportation -- most notably, as fuel for gas-powered vehicles. Thailand’s dependence on foreign oil has declined in recent years, but oil prices have increased. The Energy Department supports research and policy options to increase our domestic supply of oil while ensuring environmentally sustainable supplies domestically and abroad, and is investing in research, technology and processes to make oil drilling cleaner and more efficient -- including enhanced oil recovery and improved offshore drilling practices. The problem is if the energy in the world will be finished then, how it affected to the society. The solve a problem is wind power, solar energy, hydropower which will help production of electricity that doesn't dangerous to environment