Future generations

2. certain to happen; unavoidable
3. the activity or business of growing crops and raising livestock
5. expressing adverse or disapproving comments or judgements
8. a person who supports and admires a particular person or set of ideas
11. form an idea of the amount, number, or value of; assess
13. a narrow valley between hills or mountains, typically with steep rocky walls and a stream running through it
14. supply water to (land or crops) to help growth, typically by means of channels
16. believing that people are motivated purely by self-interest; distrustful of human sincerity or integrity
17. observe and check the progress or quality of (something) over a period of time; keep under systematic review
19. make it difficult for (someone) to do something or for (something) to happen
20. eat, drink, or ingest (food or drink)
21. highly destructive or damaging

1. a substance that is toxic to plants, used to destroy unwanted vegetation
4. opposing the use or production of nuclear power
6. of a container or covering) accidentally lose or admit contents, especially liquid or gas, through a hole or crack
7. give all or most of one's time or resources to (a person or activity)
9. the action of clearing a wide area of trees
10. an incident or event
12. the group of industries dealing with agricultural produce and services required in farming
15. declare one's public approval or support of
18. bad-tempered and irritable