
Photo: Bridget Besaw, The Nature Conservancy
by Bronson Griscom, via the Nature Conservancy’s Planet Change Blog
Can tropical forests be logged sustainably and still maintain their incredibly rich biodiversity — and benefits to people? A new study published in the journal Conservation Letters provides evidence that, with smart forest management, the answer can be “yes.”
As a forest scientist and a co-author on this article, I believe our findings confirm a critical middle way forward in protecting tropical forests: maintaining the diversity of tropical forest plants and animals, reducing carbon pollution, securing economic opportunities for local communities, and recognizing that the world’s growing population will continue to have significant needs for timber.
Why a “middle way”? Why not just focus on halting logging of these forests wherever possible?
After all, our article does find that fully protected forests are often better at conserving more plants and animals than forests managed for timber. Also, cutting trees in the tropics generates as much carbon pollution as all the cars, planes, boats, and trains in the world. That’s why a lot of organizations like The Nature Conservancy, where I work, see protecting tropical forests as a powerful part of the solution to climate change.
But what happens when tropical forest logging is halted?
For one thing, what happens to the people in tropical forest regions who depend upon logging to put bread or rice on the table for their families? Getting rid of logging jobs may backfire as a conservation goal if the alternative livelihoods involve forest conversion. (We’ve seen this in Borneo, where villages face the option of engaging timber companies or oil palm companies … or attempting to refuse both and relying on subsistence agriculture.) Another problem: some builders might replace wood with another material like steel or cement, and the process of making those other materials generates more carbon pollution than wood. Furthermore, in some places loggers are a stronger force for forest protection than national parks. This dynamic has been demonstrated in community-managed forests of Mexico and Guatemala.
These are reasons why we considered the implications of a “middle way” in tropical forest conservation: a path that integrates logging and conservation. Our study reviews over 100 scientific papers and concludes that, in places with improved forest management practices, selectively logged tropical forests[1] retain the lion’s share of their plants and animals (85-100%) and carbon (roughly 75%). Not only that: timber yields can be sustained, albeit at a lower timber volume than the first cut.
In other words, tropical forests are surprisingly resilient to damage, as long as they are not completely cleared for another land use.


If you’re going to pick someone to go missing and be need of rescue, can you do better than Bruce Greenwood? The veteran actor was a trouper while facing torture by mind control slug in the last Star Trek movie, and as vanished Amazonian explorer Dr. Emmet Cole in The River it’s easy to sympathize with the family that doesn’t want to give up on him. I generally liked the rest of
Marissa Gluck has a
If I was in possession of a large amount of extremely valuable and beautiful beachfront Hawaiian land that I wasn’t allowed to continue owning, and if I cared about my family’s legacy and the future of my state, I would have a number of options. I could sell it. I could work with the National Parks Service to set up the first National Seashore in Hawaii. I could collaborate with the Hawaii State Parks agency to preserve the land and make it accessible to people other than my family. I could spin it off into an independent charity. I could donate it into a university. I could sell some of it and purchase a small piece of it at market price to preserve as a family compound. Matt King, the wealthy lawyer portrayed by George Clooney in Alexander Payne’s smug The Descendants, considers only that first option. It’s a movie that ultimately argues that the highest moral cause is a rich man keeping what’s his. And that’s not the only thing that I disliked about the second painfully politically-misguided (and oddly out of touch) movie George Clooney gave us in 2011. 