In Two Billion Cars, transportation experts Daniel Sperling and Deborah Gordon provide a concise history of America's love affair with cars and an overview of the global oil and auto industries. America is still the leading emissions culprit, and what is especially worrying is that developing nations are becoming car-centric cultures as well. The authors explain how we arrived in this dangerous state, and also what we can do about it. Sperling and Gordon expose the roots of the problem-- the resistant auto-industry, dysfunctional oil markets, short-sighted government policies, and unmotivated consumers. They zero in on reforming our gas-guzzling culture, expanding the search for low-carbon fuels, environment-friendly innovations in transportation planning, and more. --from publisher description.