“>Transportation is the largest single source of greenhouse gas emissions in the United States, at 29% of our total. Unlike some other emissions sectors, you can control your own transportation emissions, which means there are many ways for individuals to make a real difference by changing their daily habits. Take the train to work, Walk or Cycle to school, or Ride the bus to the grocery store. Read more to learn about ways to reduce your transportation emissions, help save the planet, and possibly save yourself some money.