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Holobionts: a new Paradigm to Understand the Role of Humankind in the Ecosystem

You are a holobiont, I am a holobiont, we are all holobionts. "Holobiont" means, literally, "whole living creature." It ...

Showing posts with label green. Show all posts
Showing posts with label green. Show all posts

Saturday, November 12, 2022

Humans and Trees: They like each other, they hate each other

 

The Wochecha Mariam church in Addis Ababa. In a generally dry landscape, wherever you see a green circular area in Ethiopia, it is often around a Church. The Ethiopians have recognized long ago the value of trees as part of the spiritual experience of being human.


Humans and trees have had a difficult relationship over the past few tens of thousands of years, when humans started using stone tools and they discovered that, with some patience, a stone axe could take down a large tree. The age of deforestation is still ongoing, actually accelerating. It was not so long ago, in this extended time perspective, that the English landlord Jonah Barrington who lived in Ireland during the early 19th century, uttered a sentence that summarizes the ruthless kind human attitude toward trees: "Trees are stumps provided by nature for the repayment of debt." Somehow, we have created a frame of thought that sees no value in a tree until it is felled and sold on the market.

And yet, humans have a more complicated relationship with trees than simply cutting them down with chainsaws. It is a minority view, often disparaged with the term "tree-hugging," but it is there. Trees are something that we cannot ignore. They have been with us from the remote origins of humankind. And, sometimes, we truly feel that we need to hug a tree. Sometimes, we do, and I think it can't be so bad for one's health. In the picture, you see Grazia (Ugo Bardi's wife), hugging a Cupressus sempervirens in Italy.

Do trees perceive the presence of humans? A good question. They have a complex and sophisticated sensory system that perceives light, chemicals, and vibrations. It may well be possible that a tree can sense a human walking nearby as a combination of sounds and smells. Does a tree like to be hugged? Some questions are beyond our understanding, but they are still worth asking. And, who knows? Can we exclude that the trees of the sacred forest around a church in Ethiopia pray to God just like humans do? 


Friday, July 8, 2022

The bad holobionts in the European Parliament will pass, but good holobionts are forever

 


Good holobionts would never think that gas and nuclear are "green." Holobionts know how to survive, they know how to prosper, they know how to help each other, they know how to last for a long, long time. The bad holobionts of the European Parliament will pass, but good holobionts are forever.