Addressing Climate Change Will Not “Save the Planet”
A boiler tower surrounded by mirrors at the Ivanpah Solar Electric Generating System in the Mojave Desert, Calif., on Aug. 26, 2022. Photo: David McNew/Getty Images
The dismal reality is that green energy will save not the complex web of life on Earth but only the particular way of life of one domineering species
CONSERVATION BIOLOGY FINDS itself in a terrifying place today, witness to mass extinction, helpless to stop the march of industrial Homo sapiens, the pillage of habitat, the loss of wildlands, and the impoverishment of ecosystems. Many of its leading figures are in despair. “I’m 40 years into conservation biology and I can tell you we are losing badly, getting our asses kicked,” Dan Ashe, director of the U.S. Fish and Wildlife Service under President Barack Obama, told me recently. “There are almost no reasons to be optimistic.”
This might explain the discipline’s desperate hitching of its wagon to the climate movement. Climate, after all, is the environmental cause du jour, eclipsing all other sustainability concerns, increasingly attractive as a rallying cry for a public that has canonized it as one of the major political, social, and economic issues of our time. Mainstream climate activism of the Bill McKibben variety points toward a grandly hopeful end within the confines of acceptable capitalist discourse: decarbonization of the global economy, with technologies driven by profit-seeking corporations subsidized by governments. Taking up this banner of optimistic can-do-ism, the environmental movement has convinced itself, and sought to convince the public, that with a worldwide build-out of renewable energy systems, humanity will power its dynamic industrial civilization with jobs-producing green machines while also — somehow — rescuing countless species from the brink.
“But this happens to be a lie,” Ashe told me. “The lie is that if we address the climate crisis, we will also solve the biodiversity crisis.”
A group of conservationists took up the question of climate and extinctions last year in the journal Conservation Letters, warning that “threats to biodiversity are increasingly seen through the single myopic lens of climate
change.” The authors, who titled their article “An inconvenient misconception: Climate change is not the principal driver of biodiversity loss,” included Joel Berger, a wildlife biologist at Colorado State University; evolutionary biologist Andrew Dobson, who teaches at Princeton; and Tim Caro, an evolutionary ecologist at the University of California, Davis. “There is an assumption,” they observed, “that climate change is now the most important ‘horseman of the biodiversity apocalypse’” — despite this being “at best premature.”
When it comes to effects on wildlife, climate change is more like a mule, slow and plodding. Yes, a warmed atmosphere is projected to be a significant factor in the extinction crisis in future decades, but what’s destroying species today is habitat fragmentation and loss, overhunting and overexploitation, agricultural expansion, pollution, and industrial development. It isn’t climate change that caused a 69 percent loss in total wildlife populations between 1970 and 2018, according to a World Wildlife Fund study published this year. The cause is too many people demanding too much from ecosystems, or human overshoot of the biophysical carrying capacity of the Earth.
Overshoot is a product of both excessive numbers and rising affluence. Access to the things that create what we call quality of life, like indoor lighting and temperature controls, especially air conditioning; more diverse dietary choices, especially meat; and greater access to transportation, especially air travel — all signs of rising affluence, all delightful if you are a human, yet all demand more energy and material inputs that involve scouring and denuding more wildlands and animal habitat to feed, clothe, house, and energize burgeoning humanity.
According to the co-authors of the Conservation Letters piece, we are “dangerously ignoring” this reality and instead doubling down on the “distortion” that climate mitigation is all that matters to protecting wildlife. Over the last 30 years, the proportion of scientific papers closely tying climate change and global warming to changes in patterns of biodiversity has “steadily increased,” according to their analysis. Media coverage of climate change in relation to biodiversity has followed suit, repeating and compounding the error. The net result of this “misguided focus on climate change” has been the undermining of conservation science “as an evidence-based scientific discipline.” As Dobson put it to me, “If conservation biologists don’t take a balanced look at the evidence, they can’t claim to be evidence-based.”
The crux of the problem is that mainstream environmentalists have siloed climate change as a phenomenon apart from the broad human ecological footprint, separate from deforestation, overgrazing of livestock, megafauna kill-off, collapsing fisheries, desertification, depleted freshwater, soil degradation, oceanic garbage gyres, toxification of rainfall with microplastics, and on and on — the myriad biospheric effects of breakneck growth. Climate change is “but one symptom of an environmentally dysfunctional system of constant growth of economies and populations,” ecologist William Rees, professor emeritus at the University of British Columbia, told me.
“The meta-problem that we need to keep our eyes on,” Rees said, is ecological overshoot. Modern techno-industrial culture, he writes, “is systematically — even enthusiastically — consuming the biophysical basis of its own existence.” Rees describes this as a malignant process, humanity as cancer.
Rees is hardly alone in his stark assessments of the status quo. In the most recent letter of “world scientists’ warning,” a semiannual notice to the public, 12 experts in life sciences, global system dynamics, and ecology noted that “most planetary boundaries that regulate the state of the Earth are beyond their safe space. Therefore, climate change is not a stand-alone issue. It is part of a larger systemic problem of ecological overshoot.”
The authors added the commonsense observation that humanity “cannot sustain unlimited growth in a finite world,” a physical law of life on Earth that we ignore at our peril.
Solar panels that are part of an electricity generation plant near Mojave, Calif., on June 18, 2021. Photo: Patrick T. Fallon/AFP via Getty Images
IT MAY BE that solving the climate crisis, because we will solve it with bold technologies to maintain ourselves in overshoot — as opposed to practicing humility and restraint with an eye toward contraction of the human enterprise — will accelerate extinctions, due to the demands for space and minerals to drive the technologies. To generate solar and wind power on the scale necessary to decarbonize the U.S. utility and transportation sectors, for example, requires land use on a massive scale.