text: The End of Car Culture showed the idea " if [these] patterns persists...it will have beneficial implications for carbon emissions and the environment, since transportation is the second largest source of America's emissions." Americans are partically to blame for pollution. Our need for the newest, biggest, best things, has come at a cost, and more than money. Green-house gases are stacking up, and we have to take a stand some time. Rosenthal goes on to describe political leaders are working to fix this too, "President Obama's abitious goals to curb the United States' greenhouse gas emissions [were] unveiled last week."