Global forests are essential for climate regulation, biodiversity, and human livelihoods, yet they continue to decline worldwide. Although roughly 4.06 billion hectares of forest remain, nearly one-third of global forest cover has already been lost. Satellite data show that between 2001 and 2024, the world lost approximately 515 million hectares of tree cover, an area about half the size of the United States. Understanding where and why this loss occurs is central to achieving Sustainable Development Goal 15, which aims to protect and restore terrestrial ecosystems.
Forests provide critical ecosystem services, including carbon storage, climate regulation, and resources that support human well-being worldwide. The global value of these services has been estimated at $16.2 trillion annually, highlighting the environmental and economic consequences of continued forest loss. (Costanza et al., 2014).
| Country | Total Loss |
|---|---|
| Russia | 88.47902 |
| Brazil | 73.13848 |
| Canada | 62.49014 |
| United States | 49.30659 |
| Indonesia | 31.90621 |
| country | driver | Total |
|---|---|---|
| Permanent | ||
| World | permanent_agriculture | 167.818566 |
| World | hard_commodities | 4.659167 |
| World | settlement_infrastructure | 4.532898 |
| Temporary | ||
| World | logging | 130.894315 |
| World | wildfire | 151.479346 |
| World | shifting_cultivation | 48.563795 |
| World | natural_disturbances | 7.314100 |
Global tree cover loss is driven primarily by permanent land-use change, especially agricultural expansion. While wildfire, logging, and shifting cultivation also contribute, these are often temporary and may allow forests to regrow. The dominance of permanent conversion highlights a key challenge for SDG 15: preventing deforestation is often more effective than restoring forests after they are lost. (Sims et al., 2025)
Percent of global forests under long term sustainable management plans:
This represents a slight increase over recent decades, reflecting growing global adoption of sustainable forest policies.
| country | forestmgt |
|---|---|
| Brazil | 8.96 |
| Canada | 60.82 |
| Indonesia | 23.27 |
| Russia | 100.00 |
| United States | 67.52 |
Global forest loss remains high, but the drivers are well understood and proven solutions already exist, making SDG 15 a challenge of implementation rather than discovery.
Because forest loss has multiple causes, effective solutions must combine policy, sustainable management, and community involvement. Key approaches include:
(Sims et al., 2025) (Reek et al., 2026)
Vietnam reversed decades of forest loss through large-scale restoration programs, increasing forest cover even as agriculture expanded.
Tanzania reduced harvesting below forest growth rates by linking sustainable forest management with poverty-reduction policies.
Guyana maintained low deforestation through an international partnership with Norway that financially rewards conservation.
Madagascar established a protected forest corridor managed by local communities, reducing emissions while supporting livelihoods.
(Boucher et al., 2014)