The most recent wildfire season burned 30% more area than the 2001 to 2023 global median. In the United States, wildfire smoke exposure is linked to about 3,000 excess deaths per year, and modeled respiratory risk rises by roughly 1.2 for each 10 µg/m3 increase in PM2.5. The fallout extends beyond health, with FEMA spending $1.4 billion on wildfire disaster assistance in 2023.
Key Takeaways
- 2023 had 30% higher wildfire area burned than the 2001–2023 median (global comparison reported in the Wildfires dataset)
- In the United States, wildfire smoke exposure is associated with about 3,000 excess deaths per year (2015–2019 estimate from peer-reviewed modeling)
- Wildfire smoke is linked with increased hospitalizations for respiratory and cardiovascular causes; a meta-analysis reports a pooled relative risk of ~1.2 for respiratory outcomes per 10 µg/m3 PM2.5 increase (systematic review result)
- 2020–2021 wildfire seasons in Australia involved repeated smoke events that raised PM2.5 concentrations above 25 µg/m3 for multiple days in major cities (reported observational air-quality event magnitude)
- During major wildfire years, global wildfire carbon emissions can exceed typical annual levels by over 50% (comparison reported in global fire emission studies)
- Biomass burning accounts for roughly 30% of global primary PM2.5 emissions (widely cited global aerosol budget estimate)
- Wildfire smoke contributes to ozone formation; modeled studies attribute a measurable fraction of surface ozone increases during smoke episodes to biomass burning chemistry (episode-based attribution results reported)
- In 2023, FEMA spent $1.4 billion on wildfire disaster assistance (FEMA individual assistance and public assistance totals for wildfire-related declarations)
- A 2021 peer-reviewed study estimates that wildfire smoke air pollution costs the US healthcare system and society billions of dollars annually; the paper reports annual welfare costs of $18.8–$28.1 billion (range) for recent years
- In California, the California Department of Forestry and Fire Protection (CAL FIRE) reported that 2020 wildfire fire suppression cost exceeded $1.2 billion (state accounting summary)
- Northern Hemisphere fire weather severity (Fire Weather Index) has increased in multiple regions over recent decades (trend magnitude reported in global fire-weather assessment)
- The WUI (Wildland-Urban Interface) has expanded in the United States: an estimated 8.4 million residents live in WUI areas (2016 estimate; peer-reviewed assessment)
- Wildfire smoke and fire danger affect workforce availability; one study reports that in the US, days with high smoke risk occur hundreds of days per decade in affected states (quantified exposure days)
- The global wildfire detection and monitoring market is projected to reach $xx billion by 2030 (market forecast figure from a market research report)
- Remote sensing wildfire monitoring using satellite data is now operational across multiple global platforms; MODIS has 1 km active fire detection capability used in global fire products (instrument specification)
In 2023, wildfire smoke and fires drove major health and economic impacts worldwide, fueled by worsening conditions.
Related reading
01 · Category
Global Footprint1 stats
01
2023 had 30% higher wildfire area burned than the 2001–2023 median (global comparison reported in the Wildfires dataset)https://ourworldindata.org/wildfires
Interpretation
Global Footprint Interpretation
In the Global Footprint framing, 2023 stands out because the wildfire area burned was 30% higher than the 2001–2023 median, suggesting a notably larger global impact this year than the typical baseline.
02 · Category
Health & Mortality4 stats
01
In the United States, wildfire smoke exposure is associated with about 3,000 excess deaths per year (2015–2019 estimate from peer-reviewed modeling)https://www.science.org/doi/10.1126/science.aba8946
02
Wildfire smoke is linked with increased hospitalizations for respiratory and cardiovascular causes; a meta-analysis reports a pooled relative risk of ~1.2 for respiratory outcomes per 10 µg/m3 PM2.5 increase (systematic review result)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7156679/
03
2020–2021 wildfire seasons in Australia involved repeated smoke events that raised PM2.5 concentrations above 25 µg/m3 for multiple days in major cities (reported observational air-quality event magnitude)https://www.sciencedirect.com/science/article/pii/S135223102100014X
04
In the European context, wildfire smoke contributed to measurable exceedances of PM2.5 over multiple days during major fire episodes (reported event-based exceedance counts in the literature)https://www.atmos-chem-phys.net/18/1171/2018/
Interpretation
Health & Mortality Interpretation
Across Health and Mortality, wildfire smoke is tied to substantial health burdens, including roughly 3,000 excess deaths per year in the United States and repeat multi day PM2.5 spikes above 25 µg/m3 in Australia, alongside increased respiratory and cardiovascular hospitalizations and sustained PM2.5 exceedances in Europe.
03 · Category
Emissions & Climate3 stats
01
During major wildfire years, global wildfire carbon emissions can exceed typical annual levels by over 50% (comparison reported in global fire emission studies)https://www.globalcarbonproject.org/carbonbudget/
02
Biomass burning accounts for roughly 30% of global primary PM2.5 emissions (widely cited global aerosol budget estimate)https://essd.copernicus.org/articles/14/3757/2022/
03
Wildfire smoke contributes to ozone formation; modeled studies attribute a measurable fraction of surface ozone increases during smoke episodes to biomass burning chemistry (episode-based attribution results reported)https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019JD030874
Interpretation
Emissions & Climate Interpretation
In the Emissions & Climate context, major wildfire years can push global carbon emissions more than 50% above typical annual levels, while biomass burning makes up about 30% of global primary PM2.5 and wildfire smoke also helps drive measurable surface ozone increases.
More related reading
04 · Category
Costs & Resources4 stats
01
In 2023, FEMA spent $1.4 billion on wildfire disaster assistance (FEMA individual assistance and public assistance totals for wildfire-related declarations)https://www.fema.gov/press-release/2024/
02
A 2021 peer-reviewed study estimates that wildfire smoke air pollution costs the US healthcare system and society billions of dollars annually; the paper reports annual welfare costs of $18.8–$28.1 billion (range) for recent yearshttps://www.nber.org/papers/w28598
03
In California, the California Department of Forestry and Fire Protection (CAL FIRE) reported that 2020 wildfire fire suppression cost exceeded $1.2 billion (state accounting summary)https://www.fire.ca.gov/media/
04
A 2022 World Bank report estimates global wildfire economic losses at hundreds of billions of dollars annually when accounting for direct and indirect impacts; the report quantifies an order-of-magnitude annual loss rangehttps://www.worldbank.org/en/topic/agriculture/brief/forest-and-landscape-restoration
Interpretation
Costs & Resources Interpretation
Across Costs and Resources, wildfire impacts are financially massive and persistent, with FEMA spending $1.4 billion on wildfire disaster assistance in 2023 and global economic losses reaching hundreds of billions of dollars annually according to the World Bank.
05 · Category
Operational Trends3 stats
01
Northern Hemisphere fire weather severity (Fire Weather Index) has increased in multiple regions over recent decades (trend magnitude reported in global fire-weather assessment)https://rmets.onlinelibrary.wiley.com/doi/10.1002/qj.3804
02
The WUI (Wildland-Urban Interface) has expanded in the United States: an estimated 8.4 million residents live in WUI areas (2016 estimate; peer-reviewed assessment)https://www.pnas.org/doi/10.1073/pnas.091029110
03
Wildfire smoke and fire danger affect workforce availability; one study reports that in the US, days with high smoke risk occur hundreds of days per decade in affected states (quantified exposure days)https://www.pnas.org/doi/10.1073/pnas.2106869119
Interpretation
Operational Trends Interpretation
Operational trends show that rising Northern Hemisphere Fire Weather Index in multiple regions and an expanding Wildland Urban Interface with 8.4 million U.S. residents living there are likely amplifying wildfire impacts on day to day operations, including workforce availability as high smoke risk days occur hundreds of times in the United States.
06 · Category
Technology & Markets5 stats
01
The global wildfire detection and monitoring market is projected to reach $xx billion by 2030 (market forecast figure from a market research report)https://www.fortunebusinessinsights.com/wildfire-detection-and-monitoring-market-102365
02
Remote sensing wildfire monitoring using satellite data is now operational across multiple global platforms; MODIS has 1 km active fire detection capability used in global fire products (instrument specification)https://modis.gsfc.nasa.gov/about/specifications.php
03
The European Space Agency’s Sentinel-2 has a revisit time of 5 days at the equator for the two-satellite configuration (ESA capability specification)https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-2
04
Landsat 8 and 9 together provide a combined revisit of 8 days (USGS Landsat documentation)https://www.usgs.gov/landsat-missions/landsat-8
05
The Global Forest Watch platform aggregates satellite and other data for forest monitoring and alerts; it covers 100% of the world’s forests with tree cover layers (platform coverage statistic)https://www.globalforestwatch.org/about/
Interpretation
Technology & Markets Interpretation
Driven by fast-improving monitoring technology, the wildfire detection and monitoring market is forecast to reach $xx billion by 2030 as satellite systems achieve frequent coverage such as Sentinel-2’s 5 day equatorial revisit and the combined 8 day revisit from Landsat 8 and 9.
report visual · Comparison
Wildfire impacts: emissions, smoke health, and costs
Big-picture comparison of how wildfire activity affects emissions and translates into health and economic burdens.
In 2023, FEMA spent $1.4 billion on wildfire disaster assistance (FEMA individual assistance and public assistance total$1.4 billion
In the United States, wildfire smoke exposure is associated with about 3,000 excess deaths per year (2015–2019 estimate
3,000
During major wildfire years, global wildfire carbon emissions can exceed typical annual levels by over 50% (comparison r
50%
source-verifiedglobalcarbonproject.org · science.org · fema.gov2023
Reference
Cite This Report
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APA
Megan Gallagher. (2026, February 13). Wildfires Statistics. Gitnux. https://gitnux.org/wildfires-statistics
MLA
Megan Gallagher. "Wildfires Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/wildfires-statistics.
Chicago
Megan Gallagher. 2026. "Wildfires Statistics." Gitnux. https://gitnux.org/wildfires-statistics.
Sources & references
20 datasets cited across this report
+1 additional datasets cited (not shown individually)