Alternative fuel vehicles
Jan 15, 2009 — Transportation expert Daniel Sperling estimates that the world's car population — which currently stands at 1 billion vehicles — is likely to double in the next 20 years. Sperling is the co-author (with Deborah Gordon) of Two Billion Cars: Driving Toward Sustainability.
Oct 3, 2007 — In a new book, ZOOM, authors Iain Carson and Vijay Vaitheeswaran say that cars with electric engines are not so far down the road. The authors describe the quest for new cars powered by new fuels: hydrogen, electricity, biofuels and digital technology.