NavGeneral InfoEmail Print Geography Global Coverage type Global Time period covered 01/1996 - 12/1999 Data type Estimate Keywords Cooking fuels, Household air pollution Citation Contributors World Resources Institute Publisher World Resources Institute Publication year 2003 Suggested citation World Resources Institute. Earth Trends: The Environmental Information Portal. Washington, D.C., United States of America: World Resources Institute, 2003. GHDx Entry last modified on: Sep 6, 2023