Contact: Kevin Krajick
kkrajick@ei.columbia.edu
212-854-9729
The Earth Institute at Columbia University
Caption: Before 1996, some 2,000 nuclear tests were conducted, many in the open. Since, then, three nations have broken a de facto ban: India, Pakistan and North Korea. Here: a 1958 US underwater test at Enewetak Atoll, Pacific Ocean.
Credit: US Government
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