Environmental Studies
- Energy budget (Physics)
- energy flow
- Enriched uranium
- environmental geology
- Environmental Justice
- environmental lapse rate
- Environmental Movement
- environmental resistance
- Environmental toxicology
- environmental variance
- environmentalist
- ephemeral
- epigamic
- epigenesis
- epinastic growth
- episodic evolution
- equal-area net
- Equatorial Current
- Equatorial Undercurrent
- equifinality