gree - harm
- green belt
- green flash
- green moon
- green oxygen line
- green ray
- green sky
- green snow
- green sun
- Green's function
- Green's theorem
- greenhouse climate
- greenhouse effect
- greenhouse forcing
- greenhouse gas
- greenhouse gas emission
- greenhouse warming
- Greenland anticyclone
- Greenland current
- Greenland high
- Greenwich apparent civil time
