What happens if we run out of oil?

Related questions

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3. How much oil does Saudi Arabia have left?
4. How much oil is actually left?
5. Is Kazakhstan developed country?
6. Can humans drink giraffe milk?
7. Are humans meant to eat dairy?
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Tags

1. #humanity
2. #about
3. #demand
4. #times
5. #crude
6. #between
7. #happen
8. #three
9. #petroleum
10. #using
11. #global
12. #natural
13. #needs
14. #increase
15. #twice
16. #present
17. #around
18. #constitutes
19. #energy