Is decoupling likely to happen? To find out, here is a thread summary of my third and final lecture for The Norwegian Society for the Conservation of Nature.
(Spoiler alert: the answer is no).
THREAD/
1/ The first limit to greening growth has to do with declining rates of Energy Returns on Energy Invested (EROI), meaning that it takes more and more energy to obtain energy.
2/ And for the economists out there who will argue that the energy sector is not that important because it’s only a small part of GDP, read this paper.
3/ Capitalism is a like a trampoline: efficiency gains do not solve the problem if they rebound into more resource use and emissions.
4/ Here are a few examples of rebound effects.
5/ If you think services can grow forever without any material consequences, think again.
6/ Services are not immaterial.
7/ Circular economy, yes please. But good luck trying to make a circular economy grow (it won’t).
8/ There are a few reasons why a circular economy cannot grow forever, and this is my favourite.
9/ TECHNOLOGY, the joker card for all green growth aficionados. Grow now, figure out ways to clean up later. But...
10/ But even that card quickly runs out of steam. First, not all innovation is eco-innovation. New technologies can also exacerbate old problems or even create new ones.
11/ Second limit: eco-innovation is not enough. We also need “exnovation,” that is for new, cleaner technologies to replace old ones. This is not always happening.
12/ Final reason why technological change is limited: it is (way) too slow, and getting slower.
13/ So, put these five limits together, plus the fact that there has been barely any decoupling so far, and you get one solid insight: growth can’t be greened.
14/ If you want to watch the whole lecture, it’s here:
END THREAD/
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Karma moment in science. Two weeks ago, @IvanVSavin & @ProfJeroenBergh published a (flawed) review of the degrowth literature arguing that there were « very few studies using formal modelling ». This week, Lauer et al. published a study showing that this is wrong. 🧵
Systematically reviewing the literature from 2000 to 2023, Arthur Lauer and his colleagues identify 75 modelling studies.
Savin and van den Bergh (2024) argue that « the fraction of studies undertaking modelling or data analysis fluctuates in the range of 0-15% over tiem shows no clear trend » (p.3). Wrong again.
Today is Black Friday, a nonsensical ritual invented by for-profit businesses for the sole sake of moneymaking. By shopping today, you are willingly enriching a small class of business-owning super-polluters who bath in ecosystem-killing profits.
The top 10% richest humans own 76% of world wealth and generate 50% of all carbon emissions. The footprint of the world top 1% equals the one of the poorest 66% of humanity.
We are told that consuming forever more is part of human nature. Bullshit. The seemingly inescapable rat-race for positional prestige is constructed by an army of influencers, growth hackers, and ads designers. Read it again: the destruction of life on Earth is designed.
Of course that's your contention. You're an economist who just heard about degrowth. You just got finished reading some quick-and-dirty critique – the latest piece in The Economist probably – and you’re convinced that degrowth is unnecessary because we can green growth.
You’re gonna be convinced of that ‘til next month when you read "Decoupling Debunked", then you’re going to admit that decoupling has never happened in the past but you’ll say that it could sure happen in the future.
That’s going to last until next year when you’ll be regurgitating Andrew McAfee, Sam Fankhauser, or Alessio Terzi about how price signals and technological progress can solve any environmental issue.
Summary of my talk at the #BeyondGrowth conference on the impossibility of green growth and the necessity of degrowth. 🧵
There is a rumour that is picking up speed in the media, affirming that it is possible to both produce more while polluting less. Some people call it “green growth.”
This rumour is not only a rumour, it is also a belief deeply embedded within our current environmental strategies. Problem: The idea of an economic growth fully decoupled from nature is scientifically baseless and it is distracting us from more effective transition strategies.