| Abbreviation | Definition |
|---|---|
| CCCR | carbonn Cities Climate Registry |
| CCCW | Climate Change Commission For Wales |
| CCCW | Climate Change Commission Wales |
| CCD | Climate Change Division |
| CCDM | Climate Change and Disaster Management |
| CCDU | Climate Change and Desertification Unit |
| CCFDS | Carbon Contracts For Differences |
| CCFE | Chicago Climate Futures Exchange |
| CCFF | Climate Change Financing Frameworks |
| CCGR | Community Climate Guide and Response |
| CCGS | Climate Change Global Services |
| CCHP | Cold Climate Heat Pump |
| CCI | Climate Change Initiative |
| CCI | Climate Change Institute |
| CCI | Clinton Climate Initiative |
| CCIC | Campus Climate Impact Committee |
| CCIC | Caribbean Climate Innovation Center |
| CCIP | Climate Change and Indigenous Peoples |
| CCL | Citizens Climate Lobby |
| CCL | Citizens' Climate Lobby |