What is fracking and why is it controversial?

Related questions

1. Do oil and gas leases expire?
2. Is fracking harmful?
3. What is US tight oil?
4. What happens if we run out of fossil fuels?
5. Is fracking more expensive than drilling?
6. Should I buy house with septic tank?
7. Is Shotgun a rifle?
8. How much money can an oil well make?
9. Is fracking illegal in the US?
10. What state has the most fracking?

Tags

1. #potentially
2. #escape
3. #environmental
4. #environmentalists
5. #concerns
6. #contaminate
7. #around
8. #tremor
9. #transported
10. #water
11. #drilling
12. #earth
13. #significant
14. #which
15. #groundwater
16. #chemicals
17. #carcinogenic
18. #amounts
19. #during
20. #fracking