| Acronym | Meaning |
| IRIS | Infrared Interferometer Spectrometer |
| CCC | Cray Computer Corporation |
| MIRAGE | Megacity Impacts On Regional And Global Environments |
| NACOA | National Advisory Committee On Oceans And Atmosphere |
| ELI | Environmental Law Institute |
| HRSO | High Resolution Solar Observatory |
| CBSS | Change Board Support System |
| BEJ | Best Expert Judgment |
| GSOS | GPS Surface Observing System |
| SCGB | Special Committee For The Geosphere-Biosphere |