Setting the scene
Airlines feared jet engine abrasion from silicate particles; regulators erred conservative until test flights gathered data.
What happened
Train stations and ferries absorbed stranded passengers; conference calls discovered remote work earlier than pandemic norms.
Why it still matters
Iceland tourism marketing later leaned into fire-and-ice branding. Memorable detail: newscasters mangled the glacier's name on live TV for a week straight.
Background
The disruption highlighted globalization's hidden coupling to a single volcano and reshaped ash concentration safety rules.