(1992, 64 pages, 13.83 MB). This report was the outcome of a meeting organized by the Consortium for International Earth Science Information Network at the Aspen Global Change Institute in 1991. It contains the “Social Process Diagram” ((835 KB PDF or 577 KB JPEG), an explicit attempt to map out the key systems and interactions among systems that were seen as underpinning the human “drivers” of global environmental change.