Canada and northeastern United States
#00246
PartialRegion
Case study of
#00326 Coordinate wildfire smoke response across borders
Implementer
Canadian and United States air-quality and public-health agencies
Timeline
Since May 1, 2023
Location
Canada and northeastern United States45.4215, -75.6972
Description
During Canada's 2023 wildfire season, Canadian and U.S. air-quality and public-health agencies coordinated monitoring, forecasts, and health messaging across the border as smoke plumes crossed jurisdictions. The response exposed gaps: forecasting infrastructure functioned across borders, but populations lacked the physical resources (clean-air spaces, filtration) needed to act on the advice.
Lessons learned
- Cross-border data sharing and coordinated public messaging can follow smoke plumes that travel far beyond the originating fire jurisdiction — requiring pre-established data-sharing agreements between national agencies.
- Forecasts have limited protective value where households, schools, and workers lack access to cleaner-air options; replicators should pair messaging coordination with resource deployment (e.g., filter distribution, designated clean-air shelters).
Documented Jul 30, 2026