One approach to the problem of carbon dioxide buildup in the Earth s atmosphere is to develop novel ways to sequester CO2 before it enters the atmosphere or to accelerate its removal once it has. In order to determine whether this approach was feasible and practical, DOE asked the NRC help foster the identification of such novel concepts. A three-step project was launched to meet that request: a workshop on novel approaches; an evaluation of proposals in response to a DOE solicitation for developing such concepts; and an assessment of the process including lessons learned. The NRC delivered reports on the first two steps in April and September 2003, and this letter report presents the results of the last step of the project. The report presents an assessment of the workshop, the solicitation process, and the NRC role. In addition, recommendations are provided for improving the process for subsequent DOE carbon management initiatives.