Because of the Increasingly Important Role Played by Coal as a Viable

Short Answer

Because of the increasingly important role played by coal as a viable alternative energy source, the production of coal has been growing at the rate of billion metric tons/year t years from 1970 (which corresponds to t = 0). Had it not been for the energy crisis, the rate of production of coal since 1970 might have been only billion metric tons/year t years from 1970. Determine how much additional coal was produced between 1970 and the end of the century as an alternate energy source. Round your answer to one decimal place.
__________ billion metric tons