The research and development of hydrogen will increase with companies trying to find a viable role for hydrogen to serve in society, and this effort will come to a pinnacle in 2030 and then will be set aside and for the most part will be relegated to play a minor role, returning to today’s level of use – minor. It will not be developed as a widespread commercial energy source. The energy source developed in 2051-4 will not be based on hydrogen. (Added 8/10/05)