| Class | Title | Offered | Units |
| ESP 001 | Environmental Analysis | Fall | 4 |
| ESP 010 | Current Issues in the Environment | Winter | 3 |
| ESP 030 | World Ecosystems & Geography | Winter | 3 |
| ESP 030G | The Global Ecosystem: Laboratory/Discussion | Not Offered | 2 |
| ESP 092 | Internship | Any Quarter | 1-12 |
| ESP 098 | Directed Group Study | Any Quarter | 1-5 |
| ESP 100 | General Ecology | Fall | 4 |
| ESP 101 | Human Ecology | Spring | 4 |
| ESP 102 | Cultural Ecology | Not Offered | 4 |
| ESP 105 | Evolution of Societies and Cultures | Not Offered | 4 |
| ESP 110 | Principles of Environmental Science | Winter | 4 |
| ESP 111 | Marine Environmental Issues | Summer | 1 |
| ESP 116N | Oceanography | Winter | 3 |
| ESP 121 | Population Ecology | Winter | 4 |
| ESP 123 | Intro. To Field and Laboratory Methods in Ecology | Spring | 4 |
| ESP 124 | Marine and Coastal Field Ecology | Summer | 3 |
| ESP 127 | Plant Conservation Biology | Not Offered | 4 |
| ESP 150A | Physical and Chemical Oceanography | Fall | 4 |
| ESP 150B | Geological Oceanography | Winter | 3 |
| ESP 150C | Biological Oceanography | Summer | 4 |
| ESP 151 | Limnology | Not Offered | 4 |
| ESP 151L | Limnology Laboratory | Not Offered | 3 |
| ESP 152 | Coastal Oceanography | Summer | 3 |
| ESP 155 | Wetland Ecology | Fall | 4 |
| ESP 155L | Wetland Ecology Laboratory | Fall | 3 |
| ESP 160 | Environmental Decision Making | Fall | 4 |
| ESP 161 | Environmental Law | Spring | 4 |
| ESP 162 | Environmental Policy | Winter | 4 |
| ESP 163 | Energy and Environmental Aspects of Transportation | Not Offered | 4 |
| ESP 164 | Ethical Issues in Environmental Policy | Not Offered | 3 |
| ESP 167 | Energy Policy | Spring | 4 |
| ESP 168A | Methods of Environmental Policy Evaluation | Fall | 5 |
| ESP 168B | Methods of Environmental Policy Analysis | Not Offered | 4 |
| ESP 169 | Water Policy and Politics | Spring | 3 |
| ESP 170 | Conservation Biology Policy | Not Offered | 4 |
| ESP 171 | Urban and Regional Planning | Spring | 4 |
| ESP 172 | Public Lands Management | Not Offered | 4 |
| ESP 173 | Land Use and Growth Controls | Summer Abroad | 4 |
| ESP 175 | Natural Resource Economics | Spring | 4 |
| ESP 178 | Applied Research Methods | Winter | 4 |
| ESP 179 | Environmental Impact Reporting | Winter | 3 |
| ESP 179L | Environmental Impact Reporting w/Geographic Info | Not Offered | 2 |
| ESP 190 | Workshops on Environmental Problems | Any Quarter | 1-8 |
| ESP 192 | Internship | Any Quarter | 1-12 |
| ESP 198 | Direct Group Study | Any Quarter | 1-5 |
| ESP 198N | Ocean & Coastal Policy | Not Offered | 3 |
| ESP 199 | Special Study for Advanced Undergraduates | Any Quarter | 1-5 |
| ESP 212A | Environmental Policy Analysis | Fall | 4 |
| ESP 212B | Environmental Policy Analysis: Evaluation | Spring | 4 |
| ESP 220 | Tropical Ecology | Not Offered | 3 |
| ESP 252 | Sustainable Transportation Technology and Policy | Not Offered | 3 |
| ESP 275 | Economic Analysis of Resource & Environmental Policies | Spring | 4 |
| ESP 278 | Research Methods in Environmental Policy | Not Offered | 3 |
| ESP 298 | Directed Group Study | Any Quarter | 1-5 |
| ESP 299 | Research | Any Quarter | 1-12 |