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In 20 yeas, there will be fewer cars in use than there are today.
Car, as a major transportation, plays a definitely important role in human society. However, using of car has has three severely negative problems— which damage the environment of earth, decrease the efficiency of transportation and need to consume much nature energy in earth. Thus, we can easily reach at the conclusion that there will be fewer cars in use in the future.
The exhausts that cars emit, including carbon dioxide, undeniablely deteriorate the environment of earth. The increasing carbon dioxide lead to the global warming which deprives the homeland of vast amounts of animals and the souring sulfur dioxide bring us the acid rain which worsen the situation of trees and nests of many birds. Take the Antarctic as an example. Since the globe warming, the ice in the South Pole is melting in an aggressive speed, rendering that a slew of icebergs broken into pieces, the south bear need to take multiple efforts to find food, and the circumstance is not appropriate for animals to survive. The problems not only threaten the subsistence of animals in Antarctic but damage the whole biology system of earth. Due to the water melting from ice bergs, the ocean already cover some small islands, impelling the people living there to move to another place. Also, people need to use air condition more frequently, governments have to divert more money to deal with flood, and the acid rain impairs the appearance of buildings. Thus, we can see that the exhausts from cars not only influence the nature but also undermine the living condition of humans.
What's more, diminishing the using of cars would certainly increase the efficiency of transportation. We can already see that in metropolitan in China, the cars occupied every corner of a city, causing a host of traffic jams. Also, people goanna need enormous room to place their cars. In Bei Jing, the government already enforces some policies to control the numbers of cars, discouraging people to buy more cars and encouraging people to use mass transportation which is more efficient, such as bus, subway and etc. Mass transportation no doubt has more merits than cars, for it can transport more people, spend less time in certain distance and cost fewer resources like oil or space.
The last but not least, the energy, including the charcoal, oil and gas cannot support the using of car in the future. Since the speed we consuming these energy is far faster that the speed that the formation of these nature energy, the nature power would be exhausted within 100 years. Within 60 years, the nature energy would become extremely expensive due to its scarcity, people then cannot afford to run a car, even though the price of car is not high.
Admittedly, using cars is kind of convenient for us in current situation. However, using cars can't fulfill the future demand of humans. Since the 3 disadvantages of using car, in twenty years, there will be fewer cars in use that there are today.
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