| Abbreviation | Definition |
|---|---|
| ECCA | Economics of Climate Change Adaptation |
| ECCA | Entertainment and Culture for Climate Action |
| ECCC | Environment and Climate Change Canada |
| ECCO | Estimating the Circulation and Climate of |
| ECDS | Environment Climate Data Sweden |
| ECEP | Engineering for Climate Extremes Partnership |
| ECH | Energy Climate House |
| ECIAF | Ethiopian Climate Insurance Acceleration Fund |
| ECIC | Energy Civil Infrastructure and Climate |
| ECIC | Energy Civil Infrastructure Climate |
| ECIU | Energy and Climate Intelligence Unit |
| ECJ | Environmental and Climate Justice |
| ECLI | Etho Climate Leadership Index |
| ECPD | Energy Climate Policy Division |
| ECRAN | Environment and Climate Regional Accession Network |
| ECRL | Emergent Climate Risk Lab |
| ECSN | European Climate Support Network |
| ECT | Energy Charter Treaty |
| ECV | Essential Climate Variable |
| ECV | Essential Climate Variables |