Driver good is very important for all people. In the united states' there are  much car and this provoke much accidents in the life of the people. The president Obama's say: in the united states' greenhouse gas emissions, unveiled last week, will get a fortuitous assist from an incipient shift in american behavior: recent studies suggest that americans are buying fewer cars, driving less and getting fewer licenses as each year goes by.

In the united states peaked in 2005 and dropped steadily thereafter, according to an analysis by doug short of advisor perspectives, an investment research company. As april 2013 the nombers of miles driven per person was nearly 9 percent below the peak and equal to where the country was in January 1995. Part of the explanation certainly lies in the recession,because cash-strapped Americans could not afford new cars, and the unemployed weren't going to work anyway.''I think means something more fundamental is going on''.The transportation is the second largest source of Ameica's emissions, just behind power plants. But it could have negative implications for thr car industry. Diferent things are converging which suggest that we are witnessing a long -term cultural shift, said Mimi Sheller, a sociology professor at drexel university and director of its mobilities research and policy center. She cities various factors:the internet makes telecommuting possible feel more connected without driving to meet friends. The precident Obama is very good with the country because this words what he say ser very important for the all people and the world.