Lorenz Schimetka was sifting through 53 studies from forests in Sweden, Canada, Japan, and beyond when he found a pattern that changed how we think about trees and money. The research, led by Schimetka and his team at Wageningen University & Research and the University of Freiburg, reveals a powerful truth: when we value what forests truly give us—not just timber, but resilience, clean air, and life itself—protecting biodiversity doesn’t cost money. It saves it.
Forests are more than timber factories. They’re living shields against climate chaos, homes to countless species, and quiet guardians of clean water and air. But for years, forest managers have faced a tough choice: cut more trees now for profit, or protect biodiversity for the long term? This global review helps dissolve that false choice. Of the 53 studies analyzed—spanning 814 different forest scenarios—profitability dropped by 22% on average when only logging income was counted. But when researchers included the financial benefits of biodiversity, like reduced storm damage or payments for carbon storage, profits jumped by 18%.
The difference lies in what we choose to count. Measures like leaving deadwood, keeping habitat trees, delaying harvests, or planting multiple tree species often lower short-term income. But they also build forests that survive droughts, resist pests, and keep growing through climate shocks. That’s the "insurance value" Schimetka describes—nature’s way of hedging against an uncertain future. Yet most financial models ignore these benefits, creating a bias that makes conservation look unprofitable, even when it’s not.
The type of forest and how it’s managed also matters. In boreal forests, for example, the gains from biodiversity were less clear. But in temperate and tropical forests, especially where climate risks are rising, the economic case for diverse forests grows stronger. Still, only a few studies included future risks like fire or insect outbreaks in their models—meaning we’re likely underestimating the true value of protecting forest life.
Professor Georg Winkel, who led the team, reminds us that forests are more than balance sheets. "They have their own intrinsic value," he says, "as complex ecosystems populated by trees that can be centuries old and many other rare species." Profitability matters, but so do ethics, culture, and the quiet right of a forest to exist.
As climate change reshapes our world, this study offers a clear signal: forests managed with biodiversity in mind aren’t just ecologically smarter—they can be economically wiser too. The math changes when we start counting all the ways life in the forest pays us back.