Why is car sharing good for the environment?

Car sharing is a great way to reduce the number of cars on the road and improve air quality. As more people start adopting car sharing we will require fewer cars to get us where we need to go. This will result in less traffic congestion and less pollution. Cars will also be used less often as transit, biking or walking becomes the primary methods of travelling reducing gas usage. All of this will result in cleaner, fresher air for everyone.