it would be one of the largest sudden migrations of people in history.
to put this in perspective, 13M people fled during the Syrian Civil War. 5.7M people fled Ukraine. The evacuation of New Orleans for Hurricane Katrina was 1.2M people.
Never under estimate China. AP News says China expected 270M cross region trips during the Chinese new year this year. Likely with millions out of Beijing alone by itself for this yearly event over 2 weeks.
That's not really permanent displacement though. A refugee crisis due to water scarcity looks a lot different than going home for a known major holiday for a set amount of time.
to put this in perspective, 13M people fled during the Syrian Civil War. 5.7M people fled Ukraine. The evacuation of New Orleans for Hurricane Katrina was 1.2M people.