These are the CASSE blog articles on biodiversity.


The Imperative—and Peril—of Density

By Dave Rollo

The transition to a steady state economy—in which humans, their operations, and their artifacts are nested harmoniously within the economy of nature—is fundamentally about reconciling human needs with the needs of nature. Leaving space for habitat and the functioning of natural systems is critical to our survival and  the survival of myriad other organisms.

Natural and traditional agricultural ecosystems are autotrophic (‘self-feeding’), meaning they are capable of regenerating resources and assimilating wastes.


Tons, Hectares, or Dollars? Measuring the Pressure Exerted by the Economy on the Biosphere

by Gregory M. Mikkelson

Like a doctor measuring a patient’s vital signs, environmental scientists use various indicators to assess the health of the global ecosystem. These planetary vital signs are reckoned in a variety of units, such as tons of greenhouse gas emitted or hectares of land deforested. Meanwhile, conventional economists try to measure everything in terms of dollars (or other currencies). For example, they assign monetary values to the “ecosystem services”


COP15: The Good, the Bad, and the Smugly

by Brian Czech

On a scale of one to ten, COP15—the UN Biodiversity Conference in Montreal last month—was a solid five. That may not sound like a ringing endorsement, but it represents significant progress from prior COPs, which dabbled along in the one or two range for the better part of three decades. The progress was evident from the start, when UN Secretary General António Guterres kicked off the conference by noting,


A Primer on Economic Growth and Biodiversity Conservation for COP15

by Brian Czech

With COP15 coming up, it’s time to don the old conservation biologist hat and proffer a primer on the relationship between economic growth and biodiversity conservation. The last thing we want is a COP15 devoid of discussion about the fundamental conflict between growing the economy and conserving biodiversity. In fact, the 800-pound gorilla—GDP growth—ought to be front and center.

For the uninitiated, COP15 is the UN Biodiversity Conference,


The Environmental Consequences of Putin’s War

by Connor Moynihan

Steady-state advocates know that peace is required for a stable and prosperous world. Herman Daly said, “It is hard to imagine a steady state economy without peace; it is hard to imagine peace in a full world without a steady state economy.” Brian Czech emphasized succinctly, “Peace is a steady state economy.” And peace campaigners have long connected their goals to the environment.


Don’t Fence Me In: Exnovation for Degrowth

by Gregory Mikkelson

During recent visits to my family’s woods in northern Wisconsin, I have methodically snipped, pulled out, and recycled a half-mile of long-abandoned barbed wire. By doing so, I hope to help the biotic communities on either side of the old fence line to reconnect. The work is great exercise, and deeply satisfying.

I have not yet figured out who installed the wire or when, but the stuff was invented by Lucien Smith in 1867,


Economic Growth Takes a Bite out of Fishing

by Stephen Coghlan

“A bad day fishing is better than a good day at work,” proclaimeth bumper stickers throughout my neck of the woods in central Maine. No disagreement here! For humans, fishing is fun and mentally and physically stimulating. Fishing also engenders respect for nature, relieves stress, and sometimes provides a tasty meal; though not so much for the fish.

Fishing is deeply embedded in American culture,


The Colorado River: Devoured by Growth

by Gary Wockner

“The nature of consumption is the consumption of Nature” – Jordan Perry

The natural environment of the American Southwest is sending out a loud call of distress, but few people in positions of power are listening. Economic and population growth are straining nature, especially across the Colorado River Basin, which encompasses parts of Colorado, New Mexico, Utah, Wyoming, Arizona, Nevada, and California.

From 2010 to 2020,


Game On or Game Over for the Environment?

by Mai Nguyen

In January 2022, Microsoft announced that the company planned to buy the videogame company Activision Blizzard for almost $70 billion, giving it control of franchises like Call of Duty, Candy Crush, and World of Warcraft. This signaled to the world the potential of gaming for the tech industry’s pursuit of speedier growth despite technology being an already high-demand industry.


Signs of LIFE: Assessing the European LIFE Programme

by Adel Ramdani

In November 2021, the European Commission approved an investment package of €290 million to support 132 new environmental projects through L’Instrument Financier pour l’Environnement, or the “LIFE” programme. LIFE is designed to help reach the environmental goals outlined in the EU Green Deal, and it’s the only EU funding programme entirely dedicated to environmental, climate, and clean energy objectives. With certain adjustments, it could be more aligned with steady-state principles.