this table will be updated Jan 05 evening
| Chapter Title | 16th | 15th | 14th | 13th |
| Environment Problems, Their causes and sustainability | 1 | 1 |
1 |
1 |
| Envionmental History: Learning from the past | sup 5 | ? | 2 | 2 |
| Science, systems, matter, and energy | 2 | 2 | 3 | 3 |
| Ecosystems: What are they and how do they work | 3 | 3 | 4 | 4 |
| Evolution and Biodiversity | 4, 5 | 4 | 5 | 5 |
| Climate and Terrestrial Biodiversity | 7 | 5 | 6 | 6 |
| Aquatic biodiversity | 8 | 6 | 7 | 7 |
| Community Ecology | 5 | 7 | 8 | 8 |
| Population Ecology | 5 | 8 | 9 | 9 |
| Applying Population Ecology: The human population | 6 | 9 | 10 | 12 |
| Sustaining Terrestrial Biodiversity: Managing and protecting ecosystems | 10 | 10 | 11 | 23 |
| Sustaining Biodiversity: The species approach | 9 | 11 | 12 | 22? |
| Sustaining Aquatic Biodiversity | 11 | 12 | 13 | 24 |
| Food and Soil Resources | 12 | 13 | 14 | 13 |
| Water Resources | 13 | 14 | 15 | 14 |
| Geology and Nonrenewable mineral resources | 14 | 15 | 16 | 15 |
| Nonrenewable energy resources | 15 | 16 | 17 | 15 |
| Energy efficiency and renewable energy | 16 | 17 | 18 | 16 |
| Risk, toxicology, and human health | 17 | 18 | 19 | 11 |
| Air pollution | 18 | 19 | 20 | 17 |
| Climate change and ozone loss | 19 | 20 | 21 | 18 |
| Water pollution | 20 | 21 | 22 | 19 |
| Pest management | 12 | 13 | 23 | 20 |
| Solid and hazardous waste | 21 | 22 | 24 | 21 |
| Sustainable cities | 22 | 23 | 25 | 25 |
| Economics, environment, and sustainability | 23 | 24 | 26 | 26 |
| Politics, environment, and sustainability | 24 | 25 | 27 | 27 |
| Environmental worldviews, ethics and sustainability | 25 | 26 | 28 | 28 |