Mass flows in the U.S. oil and gas sectors, 1988 (million metric tons). Calculated by the authors from various sources, including International Energy Agency (1991), Subak et al. (1992), and United States Environmental Protection Agency (1988, 1991).
The National Academies of Sciences, Engineering, and Medicine 500 Fifth St. N.W. | Washington, D.C. 20001
"Use of Materials Balances to Estimate Aggregate Waste Generation in the United States."
Measures of Environmental Performance and Ecosystem Condition.
Washington, DC: The National Academies Press, 1999.