Citizen Action Monitor

Sir David Attenborough issues a stern warning to Earthlings in his new documentary film

Physicist Tom Murphy finds much to agree with in his review of the film: “We would keep consuming the earth until we had used it up.”

No 2722 Posted by fw, March 30, 2021“In the 1970s, we started noticing extinctions taking place right before our eyes.

Attenborough makes the point that no one wanted animals to become extinct, but that lack of awareness and a focus on personal benefits obscured the unfolding tragedy. Having largely eliminated or isolated ourselves from predators, achieved control over diseases, and mastered food to order, nothing was left to restrict or stop us. We would keep consuming the earth until we had used it up.”Tom Murphy, Do the Math

Tom Murphy is an associate professor of physics at the University of California, San Diego. Murphy’s keen interest in energy topics began with his teaching a course on energy and the environment for non-science majors at UCSD. Following his natural instincts to educate, Murphy is eager to get people thinking about the quantitatively convincing case that our pursuit of an ever-bigger scale of life faces gigantic challenges and carries significant risks.

Below is my repost of Tom Murphy’s review of Sir David Attenborough’s new documentary, “A Life on Our Planet.” At the bottom of the repost is a SEE ALSO link to an embedded excerpt from a November 2011 video of a lecture by Murphy.

But first, by way of introduction to Sir David’s new film, here is the Official Trailer.

David Attenborough: A Life on Our Planet | Official Trailer | Netflix (2:00-Min)

To read Tom Murphy’s review of this stunning new film, click on the following linked title.


Sir David Nails It, by Tom Murphy, Do the Math, March 30, 2021

If you have not already watched A Life on Our Planet, serving as a witness statement from Sir David Attenborough, please find a way to do so. During his experience-rich lifetime, Attenborough has had a front row seat to the steady whittling down of nature. Any contemporary nature show will justifiably sound the climate change horn, as A Life on Our Planet does as well. But Sir David digs deeper, as few tend to do, and scoops up the essence of the matter.

I have now watched the show three times. The first instance resonated strongly with recent revelations and writings of my own, and I gladly watched it a second time with my wife. The third time, one hand hovered over the pause button while the other scribbled notes and captured key quotations. This post delivers said quotes and connects them to themes dear to my heart. Note: the quotes in the show are delivered verbally, so any formatting emphasis is my own.

The introduction elegantly frames the story as a tragic loss of wild places, in which we mindlessly eliminate biodiversity and unwittingly dismantle our own life-support machine on this spectacular marvel of a planet. Starting a clock when he was a boy of eleven years, in 1937, key figures are updated during the course of the show. Collected in one place, the figures are as follows:


The 1950s are portrayed as a time of boundless optimism. World War II was over; the middle class was growing and prospering; technologies, innovations, ideas, and conveniences flooded into peoples’ lives. What could humanity not accomplish?

It was toward the end of the 1960s that a sense of limits began to creep into consciousness. Wild spaces are finite and need protecting, it was realized. The iconic blue marble image of Earth from the Apollo 8 excursion around the moon emphasized our vulnerable isolation: a thin shell of life containing all of humanity, save three temporary tourists. To this, he says:

We are ultimately bound by, and reliant upon, the finite natural world about us.

Amen to that, brother. The first four chapters of my new textbook, Energy and Human Ambitions on a Finite Planet, try to make the same case, as do the first two posts of this blog and an early one on space. Shortly after the decade wrapped up, the groundbreaking Limits to Growth work emerged, planting a cautionary flag intoning that the good times can’t last forever. Therefore, some have appreciated what awaits for 50 years.

In the 1970s, we started noticing extinctions taking place right before our eyes. Attenborough makes the point that no one wanted animals to become extinct, but that lack of awareness and a focus on personal benefits obscured the unfolding tragedy. Having largely eliminated or isolated ourselves from predators, achieved control over diseases, and mastered food to order, nothing was left to restrict or stop us.

We would keep consuming the earth until we had used it up.

Whole habitats were starting to disappear. Cutting down forests was seen as a win–win: timber/lumber supplies, and land to use for human development. Sure, when we only think of ourselves in the short term (as markets are geared to do, incidentally), it is easy to see the logic. After detailing a number of crushing losses perpetrated by human expansion, the bombshell quote drops—as obvious as day following night:

We can’t cut down rain forests forever; and anything that we can’t do forever is—by definition—unsustainable.

Immediately on its heels:

If we do things that are unsustainable, the damage accumulates, ultimately to a point where the whole system collapses. No ecosystem—no matter how big—is secure: even one as vast as the ocean.

Such statements should be so self-evident that they do not need saying. Yet, picture humanity looking up, crumbs on all the faces, wearing blank stares; sensing that something important was just said, but not fully grasping it. Back to the donuts. My mental image is of adolescents having found an abandoned mine. They discover great pleasure knocking out the wooden support columns, enjoying their power to alter their environment, and perhaps burning the wood for light and toasty comfort. It’s fun until it isn’t. Those columns serve a vital function. Humans are present on this planet in the context of many functioning, overlapping ecosystems that provide the support structure for our lives. We’re not separate; better than; above it all. Appendix sections D.5 and D.6 in Energy and Human Ambitions on a Finite Planet explore this theme more fully. We’re smart enough and powerful enough to change our environment, but not wise enough not to. This is echoed by Attenborough’s statement:

Our blind assault on the planet has finally come to alter the very fundamentals of the living world.

Be assured that a production of this magnitude has obsessed over every word in the script. The final word choices reflect important awarenesses. “Blind” conveys unwitting. “Assault” conjures a powerful, armed attack. “Finally” communicates that the consequences are becoming apparent at last. “Fundamentals” tries to tune us in to the underlying immutable principles at play. “Living” focuses attention on the true prize of this world—that which distinguishes us from the various other beautiful yet apparently barren hunks of rock and gas hurtling around the vacuum of space.

Having completed his “witness statement,” attesting to the loss of more than half the wild world under his watch, Sir David transitions to describe what may transpire if we fail to develop awareness of our self-imposed peril. He begins with the series of quotes:

The security and stability of the Holocene—our Garden of Eden—will be lost.

We are facing nothing less than the collapse of the living world: the very thing that gave birth to our civilization; the thing we rely upon for every element of the lives we lead.

No one wants this to happen. None of us can afford for it to happen.

My less charitable translation: people don’t mean harm, they’re just being dumb about it. Bless their hearts.

And then the crux of his advice:

It is quite straightforward. It’s been staring us in the face all along [picture a baby orangutan’s face here]. To restore stability to our planet, we must restore its biodiversity: the very thing that we’ve removed. It’s the only way out of this crisis we’ve created. We must re-wild the world.

We will return to this theme in a bit, but in the interim, the presentation lost me for a while—holding up Japan as a model for stabilizing population. But the accompanying visuals were discordant: city-scapes, not natural spaces. Japan, like all developed nations today, depends heavily on profoundly unsustainable practices: from energy requirements to material inputs. How much does Japanese lifestyle depend on a global net of resource collection from previously wild spaces of the world. That’s not our template, folks.

One must endure the obligatory raft of techno-fix solutions that risk communicating: no need to change your expectations and demands; smart people will make it all work out. I suspect this is all in service of the show’s producers insisting that our psyches be soothed and not perturbed too drastically, lest the audience experience yucky feelings of blame or despair. But eventually he pulls out of this chicanery and returns to substantive messaging:

With all these things, there is one overriding principle: nature is our biggest ally and our greatest inspiration. We just have to do what nature has always done. It worked out the secret of life long ago. In this world, a species can only thrive when everything else around it thrives, too.

The word “just” is often a trigger for me—in this case making something that has eluded us for a few centuries seem like a snap. But I agree with the overall sentiment, which is rephrased by asking us to embrace the following reality:

If we take care of nature, nature will take care of us.

This is very similar to how I end the Epilogue in the textbook: Treat nature at least as well as we treat ourselves. He elaborates:

It’s time for our species to stop simply growing: to establish a life on this planet in balance with nature.

It should be a partnership, not an unwitting (note the word “simply,” as in simpletons) exploitation satisfying immediate desires.

Again echoing musings in Appendix sections D.5 and D.6 of the textbook, Attenborough points out that:

As hunter-gatherers, we lived a sustainable life, because that was the only option. All these years later, it is once again the only option. We need to rediscover how to be sustainable—to move from being apart from nature to becoming a part of nature, once again.

I keep harping on Appendix section D.5 in the textbook, because it is incredible how well aligned some of the thinking is. This section explores what ultimate success really means, concluding that the words success and sustainable are essentially interchangeable. One will not exist without the other, in the long run.

We’re in the middle of a fireworks show, or a giant party, that looks nothing like “normal” times on this planet and has severely mangled our judgment. It’s a party financed by the one-time inheritance of the planet, unlocked and unleashed by the lubricating effect of fossil fuels. Fossil fuels give us the power to access more fossil fuels, mine deep deposits, and clear forests to make way for precious people and their needs. If we don’t begin to use our power to prepare a successful, sustainable path, the party will end in disgrace and regret—an all too familiar experience for many.

Appendix section D.6 also explores relevant aspects of the evolutionary compatibility of lifestyles far from the sustainable-by-design hunter-gatherer state. Evolution wove an ecosystem web that is essentially founded on sustainability, as unsustainable means unsuccessful and therefore not capable of forming a lasting element of ecosystems. As soon as we began combining our best-in-class intelligence with new stocks of materials that had hitherto not been part of the ecosystem’s balanced equation, we lost the protection of evolution’s built-in near-guarantee of success. That’s fine as long as the stocks remain available and are all we need.

But neither are true. The exploited resources are being exhausted, and even aside from that are insufficient on their own to sustain us. We need living, thriving ecosystems for our own survival, yet we hack and burn, knocking out the supports that create a livable space. It’s starting to be less than fun. Let’s stop, yeah, before we cause the roof to come down on our heads.

The final thought in Attenborough’s show, delivered while wandering the ruins of Chernobyl, is:

We’ve come this far because we are the smartest creatures that have ever lived. But to continue, we require more than intelligence: we require wisdom.

This is very much in line with my assessment as well. At this juncture, we have a choice to use our intelligence to “engineer” wisdom: adding a software layer that may not be part of our innate hardware, on the whole. Our guts might say “more for me, please,” but perhaps our heads can intercede to prevent our impulses from getting the better of us.

On the whole, I was deeply impressed by the core messages of this program. It is well aligned with my own conclusions in most places, and dares to look beyond the superficially evident perils of climate change to the deeper foundations of the collision course we have set ourselves upon. Our outsized power as a species bestows on us a grave responsibility to prioritize nature above ourselves, which ironically is the best way to prioritize our own long term happiness on this marvel of a planet.



Tom Murphy: The Fossil Fuel Joyride is Over,, November 10, 2011 (4:28-min)

Tom Murphy, associate physics professor at the University of California San Diego, projects energy needs for future generations to argue that current ways of living are unsustainable. Disputing the argument that technology can save humanity from a peak oil crisis, Murphy states, “the fossil fuel joyride that we have experienced has clouded our judgment.”


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