He aptly describes the forests of the world as the ‘heartbeat of the planet,’ the cycles of breathing and the pulses of life from the spike of oxygen in the spring when trees put out their leaves to the peaks and troughs over day and night that regulate plant photosynthesis and respiration. The peaks and troughs are getting shallower, he writes. With more carbon dioxide in the air the trees work less; they inhale less and exhale less oxygen.

“The planet is a finely tuned system. A few degrees of change in its orbit can usher in an ice age; a few degrees of temperature change can transform the distribution of species, can melt glaciers and create oceans. In the future, when the ice is gone, there may be no such thing as a treeline at all. As the stable currents of air and water associated with the Gulf Stream, the polar front, polar vortex and Beaufort Gyre dissipate or fluctuate, the Arctic Ocean melts completely, and the Rossby waves in the upper atmosphere go haywire, the fine gradations of temperature, altitude and latitude first observed by Alexander von Humboldt will become decoupled and ecological transition zones scrambled. Instead of a majestic sweeping zone of forest around the planet, we might find discontinuous pockets of trees in odd places, refugees from soil and temperatures long gone, and crocodiles once again at the North Pole.”

Ben Rawlence, The Treeline

Rawlence brings this all into perspective to our present situation and the role science has played in our hubristic illusion of control:

“An unfortunate side effect of science is the illusion of human mastery: the idea that if we know what is happening then we can control. The irony is that we might have been able to. The tragedy is that it is too late. The chain reaction is under way. The curve only gets steeper from here…five metres of sea level rise is locked in; it’s just a question of how fast the ice melts. Once again, the models seem to underestimate the speed…”

Ben Rawlence, The Treeline

What is most unfortunate for us, for humanity, is that we have known all this for some time. But we’ve done little. “Industrialist capitalism and its export colonialism” with its exploitive gaze that drives our needs and wants and actions has chosen to ignore the signs. That exploitive gaze ignored that we are not only embedded in but dependent upon the natural world and all the forests to live and flourish.

What Rawlence does acknowledge is a way out of our self-created doom and accompanying solastalgia:

“Our present emergency is forcing us to remember what, until recently, we have always known: that there is a web of communication, meaning and significance beyond us, a world of life forms constantly chattering, shouting and flirting and hunting each other, indifferent to human affairs. And there is solace in such a vision. The way out of the depression and grief and guilt of the carbon cul-de-sac we have driven down is to contemplate the world without us. To know the earth, that life, will continue its evolutionary journey in all its mystery and wonder. To widen our idea of time, and of ourselves. If we see ourselves as part of a larger whole, then it is the complete picture that is beautiful, worthy of meaning and respect, worth perhaps dying for, safe in the knowledge that life is not the opposite of death but a circle, as the forest teaches us, a continuum.”

Ben Rawlence, The Treeline

The planet will be alright. Species will go and others will come. Earth has experienced five extinction events (we are currently experiencing the sixth extinction event now) and after each, life flourished again, albeit different life.

Is there still hope for humanity? Perhaps—if we set our hubris aside and embrace humility and kindness. And, if in that humility, we can adapt our way through the succession we’ve triggered. There might be hope for us still…

Rawlence devotes his epilogue called “Thinking Like a Forest” to the wisdom of the indigenous people who have for millennia co-existed sustainably with the natural ecosystems of the Earth. “The Koyukon, the Sámi, the Nganasan, the Anishinaabe are just a few of the countless indigenous peoples whose world view attests to our foundational reliance on the forest.”

Time to learn from them.