It’s a stressful time in the world right now — what with brutal wars in Ukraine, Israel/Gaza, Sudan, Myanmar, and elsewhere — and with economic uncertainty and political instability in the U.S. — and a host of other problems, like looming ecological collapse.
As a result of all these stress-filled events, there are lots of pundits telling us how we can reduce our stress. Recently, I’ve heard a number of pundits tell me that if I want to reduce my stress I should take a walk in the woods. (Before you get all snarky, yes I know this advice makes unwarranted assumptions: that I live in a bioregion where there are woods to walk in; that I live in a human place where enough woodlands remain to walk in; that if there are woods to walk in, they’re safe enough that you can walk in them; that I don’t have physical limitations that preclude walking in the woods. As it happens, I do live in a bioregion which does have woodlands, I’m fortunate enough to live near a 3,000 acre state park which is mostly wooded and mostly safe, and I am physically able to walk in the woods.)
I hate to tell those pundits, but taking a walk in the woods is not going to reduce my stress.
Yesterday, I took a walk in our nearby state park. In many places in that park, American Beech (Fagus grandifolia) are the predominant tree species. But our American Beeches are under attack, and most of the beech trees I saw appeared to be in poor health. To be blunt, beech trees are being killed off by invasive organisms.
First, there’s Beech Bark Disease (BBD):
“BBD is an insect-fungus complex that involves the beech scale insect (Cryptococcus fagisuga Lind.) and the fungi Neonectria faginata and Neonectria coccinea…. It is predicted that BBD will spread across the entire range of American beech in the United States in the next 40–50?years.” (Catalina Salgado-Salazar et al., G3 (Bethesda) [Genes, Genomes, Genetics]. 2021 Mar 9;11(4). https://doi.org/10.1093/g3journal/jkab071 )
The scale insect, which arrived in North America in the early twentieth century, spreads the fungus. The fungus infects the tree causing unsightly canker sores on the bark:

There is no known cure for Beech Bark Diseases. It often proves fatal.
Second, beech trees are also under attack from Beech Leaf Disease:
“Symptoms of beech leaf disease (BLD), first reported in Ohio in 2012, include interveinal greening, thickening and often chlorosis in leaves, canopy thinning and mortality. Nematodes from diseased leaves of American beech (Fagus grandifolia) sent by the Ohio Department of Agriculture to the USDA, Beltsville, MD in autumn 2017 were identified as the first recorded North American population of Litylenchus crenatae (Nematology, 21, 2019, 5), originally described from Japan.” (Lynn Kay Carta et al., “Beech leaf disease symptoms caused by newly recognized nematode subspecies,” Forest Pathology, 27 Feb. 2020 https://doi.org/10.1111/efp.12580 )
Here’s what the leaves look like after the nematodes have attacked them (I took this photo last May):

As I understand it, foresters and dendrologists are still learning about Beech Leaf Disease. But it’s very clear that Beech Leaf Disease causes trees to lose most of their leaves, and it’s equally clear that Beech Leaf Disease eventually leads to the death of the tree.
As with Beech Bark Diseases, there is no known cure.
The upshot is that we’re going to lose all, or nearly all, of our American Beech trees in the next decade or so — just as we lost nearly all of our American Chestnut trees in the early twentieth century (due to Chestnut Blight, an invasive fungus), and just as we lost nearly all of our American Elm trees in the mid-twentieth century (due to Dutch Elm Disease, an invasive fungus), and just as we lost nearly all of our ash trees in the early twenty-first century (due to Emerald Ash Borer, an invasive insect).
Invasive organisms are predicted to be one of the major causes of the calamitous decrease in biodiversity that we’re now facing. I suppose you could go for a walk in the woods and willfully ignore these evidences of global environmental disaster. If you’re going to do that, you might as well engage in one of those chic mindfulness practices that helps you forget that anything bad is happening. And what the hell, if you need to be in denial — if that’s what it takes to reduce your stress and keep your sanity — then I say, go for it. But please don’t tell me that I should take a walk in the woods to reduce my stress — what works for you doesn’t necessarily work for me.