13.2 C
Byron Shire
August 29, 2026

Brick walls or rubber bands? The nature of ecological limits

Latest News

How can we keep paying for incompetence

The only way forward is going backwards. That’s how I explain the current situation of Byron Shire Council. The...

Other News

It’s Scam Awareness Week

Quick thinking and strong scams awareness from a bank branch manager has prevented a woman from losing almost $10,000 to an impersonation scam.

Who decides Byron’s future?

A recent Four Corners program provided a harrowing insight into new state planning legislation made in consultation with developers....

Greens urged to back pathway to end native forest logging

Some of NSW’s most respected and long-standing forest campaigners and scientists have today urged the Greens not to support the Nationals' attempt to disallow the Improved Native Forest Management (INFM) method.

Everyone’s welcome at the House of Spaghetti

Spaghetti Circus is throwing open the doors of its Mullumbimby home later this month, presenting its 2026 Annual Show, House of Spaghetti, at the Mullumbimby Showground from Friday 28 to Sunday 30 August. Five shows over three days, with every student on stage.

Rail and community consultation

The first stage of the Casino to Murwillumbah railway was opened in 1894 and shortly after the line was...

Big Council rates rise coming – self-reflection

A chance for self-reflection? Maybe Byron Shire Council should look at having a staff reduction, instead of a rate...

Jason van Tol

The concept of a limit can invoke the image of a brick wall; when driving at high speeds, sudden death can occur with one small error in steering. The brick wall metaphor of a limit has characteristics of immediacy and finality. Herman Daly has suggested that a more appropriate model for ecological limits is a rubber band. A stretched rubber band pushes back to a position of equilibrium, and the more it is stretched the harder it pushes back.

As the expansion of human numbers and economic activity proceeds, we shape the environment to suit our needs. Every species has its own characteristic niche in an ecosystem, but in the age of the Anthropocene, the scale of our influence on the environment has come to dominate. While the current pandemic may appear to be a random misfortune, it has been expected by epidemiologists for at least 15 years, following the first SARS outbreak in 2003.

A cause fo disease outbreaks is a dense and growing human population.

What causes an outbreak?

Dr Peter Daszak is a disease ecologist and president of EcoHealth Alliance, which conducts research on global health and ecological conservation. In a recent interview on Democracy Now, Dr Daszak was asked to comment on the environmental origins of COVID-19.

Having worked for 20 years on identifying the causes of disease outbreaks, he named two principal causes:

1) dense and growing human populations, and

2) land-use changes as people move into new areas, by building roads for mines or logging, and encroaching on wildlife habitat.

While he stated that the origins of the current coronavirus is not exactly certain, his past research in China has demonstrated that bats are common carriers for many types of coronaviruses, and that increased human contact with wildlife like bats is usually the cause of disease outbreaks.

Economic growth and human population

It is important to recognise that economic growth is at the core of government policy worldwide. At the same time, the human population, currently at about 7.8 billion, is expected to continue growing to between 9 and 10 billion by mid-century. With this is mind, Dr Daszak and other epidemiologists expect that continued growth will result in other and even more severe pandemics in future.

The counter model to the growth economy is the steady state economy, as promoted by Daly and other ecological economists. Two of its key characteristics are a steady or mildly fluctuating population of humans, and a steady or mildly fluctuating stock of human-made things. The steady state economy comes out of the field of ecological economics, which is organised around three hierarchical goals, the first of which is called ‘sustainable scale’, which attempts to answer the question ‘how big’ should the economy be? Notable is that this question is completely absent in standard economics, which advises unlimited growth instead.

What’s fair?

Taking this into account, the steady state economy has an important role to play in avoiding planetary sickness, but so too does the second goal of ecological economics. The second goal, constrained by the first, is called ‘fair distribution’, which attempts to answer the question, ‘How much should each person get?’

Since the publication of Adam Smith’s Wealth of Nations in 1776, the free market economy has been fiercely defended, where governments have no role in wealth redistribution, and where each individual attempts to aggrandise their own personal gain. This, we are told, will lead to an optimal social outcome. If there was ever any doubt about this doctrine, the current pandemic is showing that it is clearly false. It is to everyone’s advantage that everyone has health care coverage, regardless of their ability to pay. It is to everyone’s advantage that everyone has unemployment insurance and sick leave, so they are not forced to work while sick themselves. And it is to everyone’s advantage that everyone makes a decent wage so nobody is forced to work long hours, sometimes at multiple jobs, running themselves down, compromising their immune systems, and further facilitating the spread of disease. Yet global inequality is reaching dizzying heights, where according to Oxfam the eight richest people in the world have the same combined wealth as the bottom half of the global population.

Is COVID-19 just one manifestation of an ecological limit of economic and population growth?

The planet pushes back

COVID-19 is just one manifestation of an ecological limit that economic and population growth are pressing on. Climate change, biodiversity loss, colony collapse disorder, plastics in the ocean, are just a few others. Notice that none of these limits has resulted in immediately and finally ending growth – we are still fuelling climate change, producing plastics, and encroaching on wildlife areas. Rather, using the rubber band metaphor, we can say that these are ecological limits pushing back on the growth of the global economy and human population, and the more we continue to grow, the harder they will push back.



For four decades The Echo has printed the stories some people loved, some people hated, and some pretended not to read. If you want us to keep telling the truth, the real truth, not the sugar-coated version. We’ll need your support to keep the presses rolling.

If you are a local business owner help us and in turn we help you. All The Echo asks for is advertising, not a free ride. It is every advert in The Echo and on www.echo.net.au, which creates the space for all the stories and coverage of community events, happenings and concerns.

If you are a reader you can become a sponsor of The Echo. Your support keeps the us independent.

Even a small one-off or regular donation from you will help keep the echo’s independent voice alive and strong.

Support Us

Become one of the supporters who helps keep independent, local journalism alive in the Byron Shire by contributing anything from as little as the cost of a coffee each month.

You're Wonderful, Thank you for supporting independent journalism in the Byron Shire

You’re supporting The Echo, thank you

Your contribution is keeping independent, local journalism alive in the Northern Rivers.

Because of supporters like you, we can keep every story free for everyone — no paywall, no exceptions. Your money goes directly to funding our newsroom of 40-odd local workers covering the stories that matter to this community.

Tell us what you think, give us your opinion

The Echo loves your letters and comments and is proud to provide a community forum on the issues that matter most to our readers and the people of the NSW north coast. So don’t be a passive reader, email us your epistles at editor@echo.net.au.

The letters deadline for The Echo is noon Friday. Letters longer than 200 words may be cut. The publication of letters is at the discretion of the letters editor. Please remember to include your full name, address and telephone number.

Online comments are no longer available.

Greens urged to back pathway to end native forest logging

Some of NSW’s most respected and long-standing forest campaigners and scientists have today urged the Greens not to support the Nationals' attempt to disallow the Improved Native Forest Management (INFM) method.

Ballina Council makes decision on Ross Lane

With the absence of all four of its progressive councillors for various reasons, Ballina Council pushed ahead with its agenda at yesterday's monthly meeting, including a decision which is likely to close Ross Lane for months while the road is upgraded.

Mullumbimby puts new governance models first, and now wants to build it

Imagine Northern Rivers says Mullumbimby is the only community across the region to rank new models of governance and decision-making as the number one element of its preferred future, and last week locals gathered to work out how to make it real.

Appeal to locate man missing from Broadwater

Police are appealing for public assistance to help locate a local missing man.