Global Forest Watch (GFW) is an open environmental initiative managed by the World Resources Institute (WRI) that provides near real-time data and satellite imagery on the status of global forests. Powered by Google Earth Engine, GLAD deforestation alerts, and Landsat/Sentinel imagery, GFW empowers journalists, conservationists, and policymakers to combat illegal logging and habitat destruction.
Key Environmental Monitoring Features
- GLAD Deforestation Alerts: High-resolution weekly satellite alerts identifying tree canopy loss across primary tropical rainforests.
- Tree Cover Gain & Loss Analytics: Granular time-series statistics showing net forest change on national, regional, and municipal levels since 2000.
- Fire Hotspot Detection: NASA VIIRS real-time thermal alerts identifying agricultural burning and active forest wildfires.
- Protected Areas & Concessions: Boundary overlays covering indigenous territories, national parks, and commercial logging/palm oil concessions.
Frequently Asked Questions
What is the difference between tree cover loss and deforestation?
Tree cover loss includes both permanent deforestation (land conversion) and temporary loss from logging rotations, disease, or natural wildfires.
How often does Global Forest Watch update?
Deforestation and fire alerts are updated daily or weekly; global canopy statistics are synthesized annually in partnership with the University of Maryland.
Is Global Forest Watch data open source?
Yes. All analytical datasets, maps, and statistical summaries are freely available for download and academic citation.