Figure 4.23. Availability of fresh
water, assuming conventional development: number of people by availability
of fresh water.
- RIVM/UNEP (1997); Klepper et al. (forthcoming).
- In 1990, 0.3 billion people
lived in extremely low population-density areas that are not included
in this study. In 2015, this figure is projected to increase to 0.5
billion; in 2050, to 0.7 billion.