The modernization and development of the economy comes from the extensive use of fossil fuels, such as oil, gas, coal and nuclear fission energy. However, the factor which lead the success of the economy will rapidly run out in the first half of the 21st century. Including all kinds of oil, the main demand for the oil refinery business purpose is providing heating, satisfying transportation needs and adapting to the northern hemisphere seasonal alternate. In fact, the United States has 60% of global oil consumption, so if a particularly cold winter in North America will seriously affect the global oil prices.
According to the comprehensive estimation of oil reserves, the limit of disposable fossil energy is about 1180 ~ 151 billion tons. As the reference that the world's oil production of 3.32 billion tons in 1995. Uranium is mined annually at a rate of 60,000 tons per year, which could last until the mid-2030s, according to 1993 world energy council estimates.
As is known to all, since the three times revolution of science and technology, the energy became the lifeblood of the national economy. And the earth's energy is limited, So big countries sparked some problems related to oil or purely for oil, it was called oil war. The battle for control of the world's resources and energy, led to the outbreak of world war two. The first world war include 31 countries and 1.5 billion people, 10 million people were killed, military spend totaling $387.7 billion. In the second world war the number multiplied. Seven years of war have 60 countries to participate in, a total of 90 million casualties. After the second world war, the two superpowers of the United States and the Soviet union fought for resources and energy for more than 40 years in the cold war.
According to relevant state data, China's reserves of oil accounted for only 2% of the world, experts estimate that the less than 50 years, oil domestic crude oil resources will be depleted. The development of new energy become the choice for deal with the problem of energy crisis, and can replace fossil fuels in liquid, and the biological energy, biological energy at home has a certain development, but the technology is still the bottleneck of industrial development, raw material is not universal application, needs to be further development In response, the state has issued a series of laws and regulations to support the bio-energy industry, and called on enterprises to participate in the research, development and production of related products, with the help of market economy to help the bio-energy industry to become bigger and stronger. The main alternative energy sources are fuel cells, methanol, biomass, solar energy, tidal energy and wind energy. Actually, only the nuclear energy and water energy could be developed.