Sustainability

3. the ability to be maintained at a certain rate or level
4. the state of being extremely poor
6. the group of people with the authority to govern a country or state; a particular ministry in office
7. a new method, idea, product, etc
9. conditions relating to public health, especially the provision of clean drinking water and adequate sewage disposal
13. the production and discharge of something, especially gas or radiation
14. the state of being equal, especially in status, rights, or opportunities
15. settling a dispute by mutual concession

1. not depleted when used
2. of a person or animal able to withstand or recover quickly from difficult conditions
5. relation to living organisms to one another and their physical surroundings.
8. scattered pieces of rubbish or remains
10. the weather conditions prevailing in an area in general or over a long period
11. the action or process of converting waste into reusable material
12. information about or training in a particular subject