Humanities

3. lack of water infrastructure in general or to the poor management of water resources
6. the impact on the climate from the additional heat retained due to the increased amounts of greenhouse gases
8. capable of being renewed/not depleted when used
10. Reflection of the suns energy
13. an underground layer of water-bearing permeable rock
15. a source of supply or support
18. optimistic group of demographers
20. a person inclined to question or doubt accepted opinions
21. the reduction of carbon

1. the process of capturing waste carbon dioxide
2. change in climate
4. pessimistic group of demographers
5. a situation where resource use has outpaced the sustainable capacity of the ecosystem
7. a departure from a reference value or long-term average (temperature)
9. a general agreement
11. when and where there is not enough water to meet both human demands and those of ecosystems to function effectively
12. an act of extracting more of something than is necessary
14. Human impact on the environment
16. the ability to be maintained at a certain rate or level
17. fracturing of bedrock formations by a pressurized liquid
19. the reliable availability of an acceptable quantity and quality of water