Where does the data come from?
Fire events come from GlobFire, a global fire-event database built by the European Commission's Joint Research Centre from NASA satellite burned-area observations. It is published under the Creative Commons Attribution 4.0 license, and the source and edition are shown under the map.
Why does the timeline start at 2002?
The event database is built from a satellite burned-area record that becomes complete and globally consistent in 2002, when two observing satellites were in orbit together. Starting there means every region is measured the same way.
Is this a live map of fires burning now?
No. The map shows large burned-area events since 2002 from a satellite record. Use the timeline to move through years.
Are these all forest fires?
No — the satellites record burned area of every kind, and much of it is seasonal grassland and savanna burning, especially across Africa and northern Australia, plus some agricultural burning. That is why the tropics light up on a regular annual rhythm. The map shows them all as burned-area events without guessing at the cause.
Why are small fires missing?
To keep the map fast in your browser, only events with a burned area of at least 5,000 hectares (about 12,000 acres, or 50 km²) — roughly the area of a small city — are included. Smaller fires, even destructive ones, may therefore be absent.
Why are casualty figures not shown?
Reliable worldwide casualty databases for disasters have licensing terms that do not allow use on a site like this one, so the map sticks to the satellite record — where, when, and how much land burned — which is openly licensed.
Is anything sent to a server while I browse?
No. The fire data is downloaded once as a static file and everything — the timeline, the map, the popups — runs entirely in your browser.