Traditional Culture Encyclopedia - Weather forecast - Why develop new energy vehicles?

Why develop new energy vehicles?

Under the background of global energy shortage, environmental pollution and abnormal climate, the emergence of new energy vehicles is the inevitable result of society's pursuit of sustainable development of automobile industry.

1 energy shortage

With the continuous growth of car ownership, the world's demand for oil is also increasing. Automobile oil consumption and petrochemical industry consume a lot of oil every year, which makes the non-renewable energy of oil drop sharply under high acceleration, and the world oil crisis is becoming more and more serious. Although from 1980 to 20 10, the world's proven oil reserves increased from more than 80 billion tons to more than 200 billion tons, an increase of more than two times, but it is still difficult to change the expectation of the oil crisis. According to the prediction of the US Department of Energy, after 2020, there will be a shortage of global oil supply: in 2050, the gap between oil supply and demand will reach twice the total world oil output in 2000.

The uneven regional distribution of oil resources has also aggravated the oil crisis. Most of the world's oil reserves are concentrated in the Middle East, accounting for 55%, reaching/kloc-0.022 million tons, while China's Asia-Pacific region has only 4.658 billion tons. Political, religious, war and other factors in the Middle East have directly led to the skyrocketing oil prices and triggered economic crises in many oil-importing countries. As the largest oil importer in the world, China must actively seek alternative energy sources and develop new energy vehicles to get rid of its dependence on oil. ?

2 Environmental pollution

The exhaust pollution, noise pollution, dust pollution, gasoline vapor and photochemical pollution caused by traditional internal combustion engine vehicles are becoming more and more serious. Especially the automobile exhaust pollution in cities is particularly serious. Since 20 13, PM2.5 exceeding the standard and haze weather have become common meteorological hot words. Among the factors that cause smog, the tail gas emitted by cars, which has been growing at double digits every year in recent years, has become the main factor. Human beings are the direct victims of automobile exhaust pollution. Nitrogen oxides and lead compounds enter human lungs and blood, which greatly damage human respiratory system and digestive system and cause various diseases. Tail gas also has direct and indirect toxic effects on other animals and plants. The huge base and rapid growth of traditional internal combustion engine vehicles is a major factor causing air pollution in China. If it is not solved, the natural environment will be unbearable.

3 climate anomaly

The main component of automobile exhaust is carbon dioxide. Although carbon dioxide is not toxic, it is the main component of greenhouse gases that cause global warming. Global warming caused by the greenhouse effect will have an unimaginable impact on the global ecosystem. It is predicted that the global surface temperature will increase 100 in the future1.4 ~ 5.8' C. According to statistics, every time the temperature rises 1~2C, the precipitation will decrease by 20%, which will directly affect the development of agriculture, forestry, animal husbandry and aquaculture and accelerate the land desertification. In addition, the melting of icebergs at the poles of the earth and rising sea levels will threaten the survival of people in coastal countries and regions.

The key to solve the problem of climate warming is to reduce carbon dioxide emissions, and the carbon emissions of automobiles are the focus of emission reduction. Promoting the use of new energy vehicles with low carbon emissions is one of the key measures to effectively curb climate warming.

Under the multiple pressures of energy shortage, environmental pollution and abnormal climate, the promotion space of traditional internal combustion engine vehicles has become smaller and smaller, and it is urgent to develop low-carbon, environmental protection and energy-saving new energy vehicles. As Sheikh, the former oil minister of Saudi Arabia, said, "The Stone Age did not end because there were not enough stones, and the oil age would end before the oil resources were exhausted." Namely. Oil is an inexhaustible source of energy, and the earth on which human beings depend can no longer bear the pollution caused by internal combustion engines and automobiles.