Carpooling (also known as ride-sharing, lift-sharing), is shared use of a car, in particular for commuting to work, often by people who each have a car but travel together to save costs and in the interest of other socio-environmental benefits mentioned below.

Green Teens have the options of carpooling, riding a bike, or even walking to places like school or work. Think of different ways to get around that would be the best for our surrounding environment!

There are sometimes special facilities for carpoolers, including designated pick-up points and high-occupancy vehicle lanes which are also at times opened up to designated cars with multiple riders. Carpool projects have been around in fairly structured form going back to the mid-seventies, and in recent years have begun to make much more extensive use of the internet and software support systems. With the recent advent of mobile phones and SMS, there is a push to integrate these technologies into more flexible systems on the web. Ride sharing is an alternative to get to and connect with people at other large events, such as music festivals and conferences.

Carpools may be formed through word of mouth by friends and colleagues, or through online carpooling services like Carpool Connect or eRideShare.com!