Fig. 8. Orientor stars for the natural system (the environment and resources) resulting from a viability assessment using the Worldwatch data series for 1950–2000 after Bossel (1999). Assessment scale: 0–1 = unacceptable, 1–2 = dangerous, 2–3 = good, 3–4 = excellent. The axes represent the seven basic orientor states described in Fig. 7.