What caused the second impact?

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Tags

1. #altered
2. #causes
3. #series
4. #impact
5. #cataclysm
6. #global
7. #polar
8. #melted
9. #which
10. #september
11. #antarctica
12. #occurred
13. #second
14. #earth
15. #massive
16. #evangelion
17. #explosion