THE NATIONAL ACADEMIES PRESS
500 Fifth St., N.W. Washington, DC 20001
NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance.
This report and the study on which it is based were supported by Contract No. DE-AT-0106EE11206, TO#18, Subtask 2. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the organizations or agencies that provided support for the project.
International Standard Book Number-13: 978-0-309-11634-3
International Standard Book Number-10: 0-309-11634-1
Available in limited supply from
Board on Energy and Environmental Systems
National Research Council
500 Fifth Street, N.W.
Keck W934
Washington, DC 20001
202-334-3344
http://www.nap.edu
Additional copies are available for sale from
The National Academies Press
2101 Constitution Avenue, N.W. Lockbox 285 Washington, DC 20055 800-624-6242 or 202-334-3313 (in the Washington metropolitan area)
Copyright 2008 by the National Academy of Sciences. All rights reserved.