Wildfires have destroyed an area of protected tropical forest twice the size of Wales globally since 2001, study reveals
A university-led study, published in a peer-reviewed journal, found that over 4 million hectares of protected tropical forest have been destroyed by wildfires since 2001 — an area roughly twice the size of Wales.
Nearly one-third of all such losses occurred in a single recent year (2024), and the annual burn rate since 2016 is around nine times higher than in the early 2000s, indicating sharp acceleration.
About 89% of the destruction occurred in the tropical Americas, with one country alone (Brazil) accounting for nearly two-thirds of global losses; Bolivia and Indonesia also registered significant impacts.
Researchers compared protected forest plots against similar unprotected areas (controlling for temperature, rainfall, population density, and surrounding forest cover) across more than 9,700 protected areas globally, using satellite wildfire data.
Protection was found to meaningfully reduce wildfire risk (roughly 50% effectiveness in the Americas, up to 70% in Africa), but climate change is now driving fire risk up in both protected and unprotected forests alike.
Protected Area Categories and Their Effectiveness Limits
Protected areas are legally designated zones meant to conserve biodiversity and ecosystems, but "protected" status addresses direct threats like logging or encroachment far more effectively than climate-driven hazards like wildfire.
Key Details
- The IUCN classifies protected areas into six categories (Ia/Ib Strict Nature Reserve/Wilderness Area, II National Park, III Natural Monument, IV Habitat/Species Management Area, V Protected Landscape/Seascape, VI Protected Area with sustainable use of natural resources).
- In India, statutory protected area categories under the Wild Life (Protection) Act, 1972 include National Parks, Wildlife Sanctuaries, Conservation Reserves, and Community Reserves.
- Global tropical forest loss and fire monitoring commonly draws on data from Global Forest Watch (World Resources Institute) and satellite-based fire detection systems (e.g., MODIS/VIIRS active fire products).
The study's key finding — that protection reduces but does not eliminate wildfire losses, and that both protected and unprotected forests show rising fire trends — highlights those the legal "protected" tag reduces vulnerability to deliberate destruction (clearing, logging) but is not, by itself, a safeguard against a climate-driven hazard like fire, which spreads irrespective of park boundaries.
Wildfire versus Deforestation as Distinct Threats
Global forest-loss tracking distinguishes between deforestation (permanent land-use conversion, largely human-driven and often deliberate) and forest degradation from fire (which may or may not be human-caused and may or may not result in permanent loss of forest cover).
Key Details
- Global Forest Watch/WRI data separates "tree cover loss" (a broad measure including from fire) from "deforestation" (permanent conversion to non-forest use), a distinction important for accurate MCQ reading of forest-loss statistics.
- India's own forest-fire monitoring is done by the Forest Survey of India (FSI), which publishes fire-alert data and includes a dedicated forest fire assessment in the biennial India State of Forest Report (ISFR).
- Internationally, REDD+ (Reducing Emissions from Deforestation and forest Degradation), adopted under the UNFCCC framework, provides a results-based mechanism for developing countries to be compensated for reducing forest-related emissions, including from degradation caused by fire.
The study specifically isolates wildfire-driven loss (rather than all deforestation) inside protected areas, a methodological distinction that matters because fire-driven losses often do not show up in standard deforestation statistics tied to land clearing, and because fire risk is increasingly linked to climate change rather than direct human land conversion.
Climate Change as a Driver of Forest Fire Risk
Rising global temperatures and changing precipitation patterns are increasing the frequency, intensity, and geographic spread of wildfires, including in ecosystems like tropical rainforests that historically had low natural fire risk.
Key Details
- The UNFCCC (1992) and its Paris Agreement (2015) are the principal international frameworks under which countries commit to climate mitigation and adaptation, including forest-based carbon sink protection.
- Tropical rainforests such as the Amazon are especially climate-sensitive because they are not naturally fire-adapted ecosystems (unlike savanna or boreal forests), so even modest drying trends sharply raise ignition and spread risk, often compounded by nearby agricultural burning.
- The study's finding that fire trends are converging between protected and unprotected areas over time is consistent with broader scientific literature attributing increasing tropical wildfire activity to climate-driven droughts (e.g., El Niño-linked dry spells in the Amazon and Southeast Asia).
The researchers explicitly call for fire prevention to be built into conservation planning and for climate mitigation to be treated as a foundational requirement for protected-area effectiveness, since park boundaries alone cannot counter a climate-driven hazard.
- Over 4 million hectares of protected tropical forest lost to wildfire globally since 2001 — roughly twice the area of Wales.
- Annual wildfire-driven loss in protected tropical forests is about 9 times higher since 2016 compared to the early 2000s.
- Nearly one-third of all such cumulative losses (2001–2024) occurred in 2024 alone.
- About 89% of global losses occurred in the tropical Americas; Brazil alone accounted for nearly two-thirds of the global total.
- The study covered more than 9,700 protected areas worldwide using satellite data from 2001–2024.
- Protection effectiveness against wildfire ranged from about 50% (Americas) to about 70% (Africa).