text: In the United States, President Obama goals are to curb the United States greenhouse gas emissions.  The Enviromental Protection Agency is promoting "car reduced" communities.  The efforts to reduce driving is paying off.  A study found that driving by young people has decreased 23 percent between 2001 and 2009.  Mr. Sivak's research shows a large drop in the percentage of 16- to 39 year olds getting a liscense.  In New York, there is a new bike sharing program and that can help people to choose to take bike instead of riding in a car.