The Hydrogen Economy by Jeremy Rifkin (2003) The message of The Hydrogen Economy is simple: The earth is depleting its oil reserves and even the most generous estimates show oil reserves peaking in about forty years. The specter of global warming and the rise of Islamic fundamentalism in the oil-rich regions of the earth worsen the problem considerably. The answer, asserts Rifkin, is to embrace a new energy source that is just now gaining public attention: .