The evolution of automotive has caused mechanical and environmental problems. Nowadays, people are more dependent on a car and it makes almost every family has a car at least. There is also development in the suburb area so that people tend to move more than before. The needs of transporting people are higher than before such as take people to schools, stores, banks, and medical facilities. In some area they cannot go somewhere a little far unless they drive. Moreover, modern mom tends to be busier than before since she has to take the kids to school, to practice, to games, to extracurricular activities, or to parties of course by driving.
One effect is the environmental problems. Auto exhaust is one key factor related to global warming, acid rain and air pollution. This is because the fumes contain carbon dioxide which keep the heat and lead to global warming. Also, the gasoline which is burned produces nitrous oxide. It is the main factor of acid rain. When those substances are exposed to the ultraviolet rays of the sun, it will result dirty air in the earth. After that, there is also water pollution because the certain disposal systems are in fluid form such as brake fluid, transmission fluid and anti-freeze. Often, water pollution occurs when barrels of oil are spilled in the sea due to the tanker accident. All of them should make people become more aware of the environmental issues and reduce the use of car.
The increase of the oil price higher and regularly force the society to act significantly by starting to develop auto engine greener. The oil price also makes scientists work harder to create smaller and more energy efficient vehicles. They also conducted some research on alternative fuel and electric cars. Actually, electric cars have been introduced before but it seems that they have never been taken seriously. Nowadays, you can see some electric powered cars and motorcycle on the streets.
Another effort which is done based on environmental issues is the innovation of hybrid vehicle. That car uses and burns fuel minimally and has lighter weight. This becomes major concern in auto world since it is considered safer than other cars. Normally, passengers in larger vehicles fared better in collisions than those in smaller vehicles. This makes car manufacturers create air bags to eliminate these dangers. They also designed cell like enclosures to protect the occupants.