Changbai Mountain
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A volcano on the border of China and North Korea. A nuclear program hidden beneath the mountains. One scientist caught between geology and geopolitics.
When volcanologist Josh Cooper is summoned to the Pentagon, he expects to answer a scientific question: could North Korea's underground nuclear testing disturb Mount Changbai, one of Asia's most consequential volcanic systems?
The answer is anything but simple.
Straddling the Chinese-North Korean border, Changbai is crowned by Heavenly Lake and...






















