5.17
Tree cover in the British Isles about three thousand years ago
236
5.18
Traditional tree management
237
5.19
Ploughing and sowing
240
5.20
Indices of per capita food production 1990–94
243
5.21
World production of cereals during the 1990s
244
5.22
Rate of world population growth
246
5.23
World population 1850–2025 (median estimate)
248
5.24
Estimates of the rate of global population increase since 1975
249
5.25
One method of genetic engineering
252
6.1
Effects on a population of fragmentation of habitat
261
6.2
Population structure for three species within a habitat
263
6.3
Island wildlife refuges
267
6.4
Pesticide use and crop yield
270
6.5
Even-sized droplets from the teeth of an ultra-low-volume pesticide sprayer
271
6.6
A hand-held ultra-low-volume sprayer
272
6.7
Florida, showing the location of the Everglades
275
6.8
Living resources and population
278
6.9
Resource consumption by rich and poor
278
6.10
Kondratieff cycles
280
6.11
Government assistance for environmental technologies in the EU 1988–90
284
6.12
Private investment in pollution control during the 1970s and 1980s
285
6.13
Carbon dioxide emissions in 1988
286
6.14
Acid rain distribution
290
6.15
Countries bordering the Mediterranean
292
6.16
Areas included in the UNEP Regional Seas Programme
293
List of Figures / ix