Atmospheric Chemistry Air Quality Glossary: By the Sam Houston State University air quality and atmospheric chemistry students. Sources are quoted, and hyperlinks to relevant Internet sites are included.
Carbon Dioxide and Climate: Glossary of carbon dioxide and climate terms.
Carbon Dioxide Information Analysis Center: Abbreviations and acronyms relating to carbor dioxide research and analysis used at the Oak Ridge National Laboratory.
Climate Change Terms: Glossary of "global warming" and general climatology terms.
Environmental Sciences Dictionary: Selected terms used in this field, from greennature.com. Browsable by first letter.
Water Environment Glossary: Water Environment Federation glossary of terms.