Households, Consumption, and Energy Use: Population Age Structure and Future Carbon Emissions for the United States • Michael Dalton, California State University, Monterey Bay ; Brian C. O'Neill, International Institute for Applied Systems Analysis (IIASA) ; Leiwen Jiang, Brown University ; John Pitkin, Analysis and Forecasting, Inc.

Multilevel Determinants of Indigenous Land Use in the Northern Ecuadorian Amazon: A Cross-Cultural Study • Clark L. Gray, University of North Carolina at Chapel Hill ; Jason Bremner, University of North Carolina at Chapel Hill ; Richard Bilsborrow, University of North Carolina at Chapel Hill ; Flora Lu Holt, University of North Carolina at Chapel Hill

Population, Uncertainty, and Learning in Climate Change Decision Analysis • Brian C. O'Neill, International Institute for Applied Systems Analysis (IIASA) ; Warren C. Sanderson, International Institute for Applied System Analysis

The “Population Factor” and Deforestation in Brazilian Amazonia: Towards a Mediating Perspective • John Sydenstricker-Neto, Cornell University