I agree with post # 2. Many young folks (understandably) want to drive their cars to school rather than taking buses, but taking the bus would almost certainly save energy. If you type "teenagers and saving energy" into Google, you will find many sites listing lots of practical tips about young people saving energy. Here is one of them: http://www.tvakids.com/electricity/conservation.htm
One additional thought: a good way for young people to help us improve our energy situation would be for more young people to go into the hard sciences. It's only through scientific innovation that we are likely to solve the severe energy problems we face.
One of the most overlooked and yet most effective ways of conserving oil is to simply use less energy. To drive less, to carpool more, to simple conserve on the consumption end rather than relying on new technologies or finding alternate ways to consume far too much energy.
Because of this, if one can find a way to imbue habits of conservation within the youth, the youth can play a huge role in reducing oil consumption in the future and go to great lengths to reduce the world's dependency on fossil fuels for most of our energy needs.