A workaday survey of energy problems (limited supplies of fossil fuel, dangers of nuclear reactors) and possibilities (fusion, solar heating and cooling, geothermal energy), with generally pointless photographs. (There's even one of a meter reader on the job.) Like Halacy in The Energy Trap (1975), Marshall warns that necessary energy savings will require "changes in our way of life," but his specific suggestions-insulate homes, drive more efficiently, tax big cars--mention only small adjustments. And, in general, Halacy outlines the issues more sharply. Utilitarian.