http://www.post-gazette.com/cars Auto news and reviews en-us Copyright 2012, post-gazette.com. Sat, 4 Feb 2012 17:09:47 -0500 15 http://www.post-gazette.com/includes/2007design/images/150x30pg_now_logo.gif http://www.post-gazette.com/ 144 39 http://www.post-gazette.com/pg/12034/1207879-185-0.stm?cmpid=autonews.xml Peter Hoffmann started what is now the Hydrogen and Fuel Cell Letter in 1986 and is the author of two books on this potential energy carrier for automobiles. "Tomorrow's Energy: Hydrogen, Fuel Cells and the Prospects for a Cleaner Planet" was published in 2001, but a revised and expanded edition is scheduled to be available from M.I.T. Press in March. Fri, 3 Feb 2012 00:00:00 -0500