We Stopped Debating Forest Conservation Methods and Started Measuring Them

What actually works to conserve forests?

That's the question we get from donors, landowners, and students who are tired of the same recycled answers. After two decades in the field, we've learned that most conservation methods are not competing religions. They are tools with specific jobs. The trick is matching the tool to the threat.

Here's how we actually think about it.

Are protected areas the best way to save forests?

They matter, but they are not the whole story. About 20% of forests—813 million hectares—are in legally protected areas, up 251 million hectares since 1990 (FAO Global Forest Resources Assessment 2025). That's real progress. But protection on paper doesn't stop a chainsaw at midnight. When we look at the Amazon, satellite and ground data show far less deforestation in territories occupied and managed by Indigenous peoples than in parks and other protected areas (NASA Earth Observatory: Tropical Deforestation).

That finding should reorder your priorities. If you're funding a new park boundary but ignoring the people who already live there, you're probably funding a map, not a forest.

Does certification actually stop deforestation?

Certification is a market tool, not a conservation law. FSC certifies about 175.5 million hectares across 89 countries, with more than 60,000 companies holding chain-of-custody certification (FSC UK Facts and Figures). PEFC covers almost 300 million hectares, and roughly 63 million hectares are double certified by both systems (PEFC Facts and Figures).

That's a lot of forest under audit. But we've seen certified operations clear native forest for a plantation and still pass the paperwork. Certification tells you a management system exists. It does not tell you the system is ecologically ambitious. Use it as a baseline, not a trophy.

Is planting trees the answer?

This is the myth we most want to kill. Tree planting is not forest conservation. It's a restoration tactic that works only when the right species go in the right soil with someone paid to water them for three years.

Planted forests cover about 312 million hectares—roughly 8% of total forest area (FAO Newsroom: Global Forest Resources Assessment 2025). Meanwhile, naturally regenerating forests make up 92% of total forest area and declined by 324 million hectares between 1990 and 2025 (FAO Newsroom: Global Forest Resources Assessment 2025). We are losing the forests that plant themselves faster than we can plant new ones. A nursery full of seedlings is not a strategy; it's a supply chain.

What about fires and pests—can we manage those?

We can, but not by pretending they are natural. Fire affects an average of 261 million hectares of land annually, nearly half of it forested (FAO Newsroom: Global Forest Resources Assessment 2025). In 2024, fires overtook agriculture as the leading cause of tropical primary forest loss for the first time on record, accounting for nearly 50% of that loss compared with a recent-year average of 20% (WRI: Global Forest Loss Shatters Records in 2024).

Pests are just as brutal. The emerald ash borer, first detected in Michigan in 2002, has killed hundreds of millions of ash trees, with infested trees losing most of their canopy within two years and dying within three to four (USDA NISIC: Emerald Ash Borer). We can't spray our way out of that. We can diversify species and stop moving wood around.

Do we need more management plans or more enforcement?

Both, but plans come first. More than half of forests—2.13 billion hectares, or 55%—are under long-term management plans, and 71% of forests are publicly owned (FAO Newsroom: Global Forest Resources Assessment 2025). A plan is where you decide what a forest is for: production, biodiversity, soil and water, or some mix.

Right now, 1.20 billion hectares are managed primarily for production, 482 million hectares for biodiversity conservation, and 386 million hectares for soil and water protection (FAO Newsroom: Global Forest Resources Assessment 2025). If your country's plan doesn't name which of those three comes first in each landscape, you have a wish list, not a plan.

Which method should we prioritize?

Here's the comparison we use when advising a land trust or a ministry. It's not about which method is morally superior. It's about which one matches the threat you can actually influence.

We lean on three rules when choosing:

• If the threat is a bulldozer, fund boundaries and community title.
• If the threat is a firestorm, fund fuel reduction and early detection.
• If the threat is a supply chain, fund traceability and certification together.

That last point matters more every year. The EU Deforestation Regulation requires operators and traders placing covered products on the EU market to prove they are deforestation-free, legally produced, and covered by a due diligence statement (EU Regulation on Deforestation-free Products). It covers seven commodities—cattle, wood, cocoa, soy, palm oil, coffee, and rubber—plus derived products like leather, chocolate, tyres, and furniture. Large and medium operators must comply from 30 December 2026, and micro and small operators from 30 June 2027 (EU Regulation on Deforestation-free Products).

If you're a smallholder coffee farmer in Peru, that date is not a Brussels formality. It's the difference between selling into Europe and not. We've watched cooperatives spend two years building plot-level traceability because they read the regulation early. The ones who waited are still calling consultants.

What's the one method we should stop pretending works?

Planting trees as a substitute for protecting existing forest. A hectare of primary forest holds carbon and species that a hectare of saplings won't match for a century. The Bonn Challenge aims to restore 350 million hectares of degraded and deforested land by 2030, and more than 210 million hectares have been pledged since 2011 (IUCN Bonn Challenge press release). That's encouraging, but restoration is not a permission slip to clear more primary forest elsewhere.

If we had to pick one number to watch, it's not the area pledged. It's the 4.12 million hectares of net forest loss per year from 2015 to 2025 (FAO Global Forest Resources Assessment 2025). That's the bottom line. Everything else is a method.

What I'd actually do

If you gave me a budget tomorrow, I would not start with a nursery. I would start by mapping who holds legal rights to the forest and who is clearing it. Then I'd put most of the money into securing and supporting community management in the highest-loss tropical landscapes, because that's where the evidence of avoided deforestation is strongest. I'd reserve a smaller slice for fire response and species diversification, and I'd require every restoration project to report survival at year three, not just seedlings planted.

Then I'd tie the whole thing to a traceability system that can meet the EUDR deadlines. Conservation that can't prove where a product came from is conservation that loses its market. And a forest with no market for its standing value gets cut. That's the calculation we make every season.

Sources

• FAO Global Forest Resources Assessment 2025 - https://www.un-redd.org/post/global-deforestation-slows-forests-remain-under-pressure-fao-report-shows
• FAO Newsroom: Global Forest Resources Assessment 2025 - https://www.fao.org/newsroom/detail/global-deforestation-slows--but-forests-remain-under-pressure--fao-report-shows/en
• NASA Earth Observatory: Tropical Deforestation - https://earthobservatory.nasa.gov/features/Deforestation
• WRI: Global Forest Loss Shatters Records in 2024 - https://www.wri.org/news/release-global-forest-loss-shatters-records-2024-fueled-massive-fires
• EU Regulation on Deforestation-free Products (EUDR) - https://environment.ec.europa.eu/topics/forests/deforestation/regulation-deforestation-free-products_en
• IUCN Bonn Challenge press release - https://iucn.org/press-release/202511/germany-and-iucn-celebrate-15-years-bonn-challenge-worlds-largest-restoration