Nouns:
- atmosphere
- biodiversity
- carbon dioxide
- climate change
- conservation
- deforestation
- desertification
- disposable
- dying out
- energy
- environment
- extinction
- garbage
- greenhouse
- habitat
- pollutant
- pollution
- rubbish
- smog
- species
- trash
- reforestation
- renewable
- wildlife
Verbs:
- compost
- commute
- consume
- die out
- dispose
- donate
- fertilize
- preserve
- protect
- protest
- pollute
- recycle
- reduce
- rely on
- reuse
- throw away
- use up
- waste
Adjectives:
- biodegradable
- disposable
- endangered
- energy-efficient
- environmentally-friendly
- extinct
- green
- renewable
- toxic
- zero-emission
