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Re:A crater formed in Siberia's permafrost is growing by mirimir on Monday February 27, 2017 @11:01PM (#13751046)
If they'd had a Pacific test site, they might well have gone with 100 MT.
Re:A crater formed in Siberia's permafrost is growing by M_Grey on Monday February 27, 2017 @11:18PM (#13751125)
I suspect that you're right, although I hope that sanity might have prevailed. It's hard to imagine the damage the uranium liner + 50 megatons would have done to that ecosystem.

Of course if the US hadn't been experiencing so much political upheaval, they might have tried responding in kind.

Re:A crater formed in Siberia's permafrost is growing by mirimir on Monday February 27, 2017 @11:39PM (#13751239)
Sanity ;)

The global nuclear arsenal is still over 2500 MT, I bet :(