Can We Really Plant Our Way Out of the Forest Crisis?

Imagine you're standing in a freshly planted grove in sub-Saharan Africa. A thousand seedlings are in the ground, each a promise of shade, fuel, and carbon storage. It feels like a win. But then you look over the ridge, where a primary forest that took centuries to assemble is being cleared for charcoal. The seedlings won't replace what's lost. Not even close.

That's the central question: Should forest conservation focus on planting new trees or protecting the forests we already have? My answer: protection comes first. Restoration is valuable, but it's a complement, not a substitute. The numbers make the case.

Why planting gets all the attention

Reforestation is tangible, photogenic, and easy to fund. The Bonn Challenge, launched in 2011 by Germany and IUCN, aims to restore 350 million hectares of degraded land by 2030. Over 60 countries and partners have pledged more than 210 million hectares. Regional platforms like AFR100 in Africa and Initiative 20x20 in Latin America are pushing the same goal.

But pledges aren't forests. And a planted hectare is not the same as a natural one. Planted forests cover about 312 million hectares, roughly 8 percent of total forest area. They can provide wood, jobs, and some carbon storage. Yet they often lack the biodiversity and structural complexity of primary forests, which span at least 1.18 billion hectares and harbor irreplaceable species.

The math of loss versus gain

Here's the brutal arithmetic. Gross deforestation slowed to 10.9 million hectares per year in 2015–2025, down about 38 percent from 17.6 million in 1990–2000. That's progress. But net forest loss still ran at 4.12 million hectares per year in the same period. Meanwhile, forest expansion—the rate at which new area is added—dropped from 9.88 million hectares per year in 2000–2015 to 6.78 million in 2015–2025. We're planting and restoring less, while still losing millions of hectares annually.

And the quality of what's lost matters. Tropical primary forest loss hit 6.7 million hectares in 2024, nearly twice the 2023 total, an area almost the size of Panama. In 2024, fires overtook agriculture as the leading cause of that loss for the first time on record, accounting for nearly half. Brazil alone accounted for 42 percent of all tropical primary forest loss, with fire-driven loss up more than sixfold from 2023. You can't replant a primary forest. You can only lose it.

What actually works: protection and management

If the goal is to keep carbon in the ground and species alive, the evidence points to protection and sustainable management. About 20 percent of forests (813 million hectares) are in legally protected areas, up 251 million hectares since 1990. In the Amazon, scientists using satellite and ground data found far less deforestation in territories managed by Indigenous peoples than in parks and other protected areas. That's not sentiment; it's data.

Long-term management plans also help. More than half of forests—2.13 billion hectares, or 55 percent—are under such plans. And forests managed primarily for production cover 1.20 billion hectares, while 482 million hectares are designated for biodiversity conservation and 386 million for soil and water protection. These designations matter because they set boundaries on what can be cut and where.

Certification can reinforce those boundaries. The Forest Stewardship Council certifies about 175.5 million hectares across 89 countries. PEFC-certified forests cover almost 300 million hectares. Together, they cover a significant share of working forests. Certification isn't perfect—about 63 million hectares are double-certified, which suggests some redundancy—but it provides a market signal and a set of standards that can slow degradation.

The comparison: planting vs. protecting

Let's put the two approaches side by side. The table below compares them on key criteria, using figures from the fact base.

The table makes the trade-offs clear. Protection wins on scale, biodiversity, and speed. Planting can help on degraded land, but it's no match for keeping a primary forest standing.

Where restoration still earns its place

None of this means we should stop planting. Restoration has a role—especially in landscapes that are already degraded. The Great Green Wall, launched in 2007 by the African Union, aims to restore 100 million hectares of degraded land, sequester 250 million tonnes of carbon, and create 10 million green jobs by 2030. More than USD 14 billion has been raised. That's a serious effort, and it's focused on land that's already lost.

Mangroves are another case. Global mangrove extent declined by 5,245 km2 (3.4 percent) between 1996 and 2020. About 8,183 km2 are considered restorable, including about 2,000 km2 in Indonesia. Restoring those could safeguard carbon equivalent to 1.27 gigatonnes of CO2. That's worth doing. But it's a targeted fix, not a cure-all.

Here's a short list of where restoration makes sense:

• Degraded land with low biodiversity value
• Mangrove and coastal areas where loss is recent and hydrology can be restored
• Buffer zones around protected areas to reduce edge effects

Outside those cases, planting can do more harm than good—especially when it displaces communities or replaces natural grasslands.

The policy lever that could tip the balance

Regulation is starting to catch up. The EU Deforestation Regulation (EUDR) requires operators and traders placing seven commodities on the EU market—cattle, wood, cocoa, soy, palm oil, coffee, and rubber—to prove they are deforestation-free and legally produced. It aims to cut at least 32 million tonnes of CO2 emissions per year. Large and medium operators must comply by 30 December 2026; micro and small operators by 30 June 2027. The EUDR information system launched on 4 December 2024.

This is the kind of hard rule that changes behavior. It doesn't rely on goodwill. It puts the burden on supply chains to prove they aren't destroying forests. If enforced, it could reduce pressure on primary forests in ways that planting never will.

The single most important thing to remember

Protecting existing forests is the fastest, cheapest, and most effective conservation method we have. Planting is a supplement, not a solution. If you care about forest conservation, push for stronger protection, support Indigenous land rights, and back regulations like the EUDR. Then, where land is truly degraded, plant—but plant native species, and only after you've secured what's already standing.

Sources

• FAO Global Forest Resources Assessment 2025 - https://www.un-redd.org/post/global-deforestation-slows-forests-remain-under-pressure-fao-report-shows
• WRI Global Forest Review: 2023 tree cover loss - https://gfr.wri.org/global-tree-cover-loss-data-2023
• WRI: Global Forest Loss Shatters Records in 2024 - https://www.wri.org/news/release-global-forest-loss-shatters-records-2024-fueled-massive-fires
• IUCN Bonn Challenge press release - https://iucn.org/press-release/202511/germany-and-iucn-celebrate-15-years-bonn-challenge-worlds-largest-restoration
• EU Regulation on Deforestation-free Products (EUDR) - https://environment.ec.europa.eu/topics/forests/deforestation/regulation-deforestation-free-products_en
• Global Mangrove Watch data update - https://www.mangrovealliance.org/news/data-update-to-global-mangrove-watch