How to find and access energy needed to keep Earthly civilization going and growing is an old problem. But the solution to that problem may not be on the Earth.
Modern, industrial civilization has provided a lifestyle for
ordinary people that Kings and Emperors in previous eras would have envied. The
growth of technology has provided appliances that do the work for each person
that previously was done by dozens of servants. People have access to mobility,
comfort, entertainment, and information undreamed of just a short time ago in
human history.
The problem is that all of those vacuum cleaners, plasma
TVs, home computers, and automobiles need energy to make them work. The advance
of technology means more devices needing more energy. The growth of population
means more people demanding those devices needing more energy. And, to top
everything off, regions of the world emerging from third world status—India
and China being
prime examples—create an even greater demand for energy.
Nearly every source of energy on Earth presents problems.
The burning of oil and coal causes pollution, including the sort that some
point to as the cause of global warming. Potential new sources of oil tend to
be in places that are either politically unstable, such as the Middle
East, or in environmentally controversial areas, such as Alaska
or off shore from California or Florida.
Nuclear power, while safer than in previous years, is still politically
controversial and still produces radioactive waste that is difficult to dispose
of. Renewable sources, such as ground based solar and wind, cannot generate
enough energy to keep pace with the growing demands of human civilization.
Is the world condemned to a Hobson’s choice of rationing
energy or else accepting the dangers and tradeoffs of exploiting more and more
of the Earth’s energy sources? Perhaps not. The answer may well lay about a
quarter of a million miles away, at a place people can see on most clear
nights. Indeed, the Earth’s Moon may be the Persian Gulf
of the later 21st Century, if we have the will to make use of what
it has to offer.