By J. Scott Hauger Abstract Mongolian sand and dust storms are an age-old phenomenon. Inter-annual variability is great, but March 2021 saw two extreme dust storm events with human security impacts reaching from Mongolia and China to Korea and Japan. The principal challenges to human security posed by Mongolian dust storms are food insecurity, threats to human health, and infrastructure degradation, plus human migration to escape those impacts. In modern times, dust storm events have not exceeded the capabilities of nations to manage their human security impacts. However, they can threaten regional security if they exceed a nation's ability to [...]