Legal researcher Niels Hoek explores the phenomenon of Shifting Baseline Syndrome in our experience of the ever-changing natural world, exemplifying a generational amnesia that conservation lawyers, environmentalists and creative practitioners can help combat as we navigate the Anthropocene.
1,650 words: estimated reading time = 6.5 minutes
The natural world has been on a steep decline in the past couple of decades, and most of the readers of ClimateCultures most likely can name a personal account which highlights this decline . Perhaps you have witnessed how a local grassland was converted into cropland. Additionally, you may well have observed how your favourite animal was added to the IUCN Red List, removed from its original habitat, or noted first-hand how your local forest was logged extensively . All these modern issues highlight the pressing need for conservation and restoration measures, both within and outside of natural areas.
However, addressing our impact on the natural world through regulation and conservation policies is a significant challenge. Whilst a duty for conservation seeks to maintain what is still present, a legal duty for restoration returns a natural habitat to a former, more complete version . Be that as it may, the extent of the damage can be widespread or dated to the point where the original image is lost entirely. Whilst there are many interesting questions on nature restoration, this short blog post reflects on which starting point may be taken within (regulatory) instruments and conservation practice. A question that, at least on the surface, appears to be uncomplicated — but on closer inspection is a rather difficult issue.
The Anthropocene and the Shifting Baseline Syndrome
The starting point, or baseline, is an important concept within nature conservation law: when the state of nature deviates from the recorded status quo, it stipulates the need for conservation measures and the enforcement of nature conservation laws, such as a deterioration prohibition as found within the EU Habitats Directive . Moreover, it flags the need for additional research from all disciplines and creative activism; a starting point used for comparison is vital for ecologists, lawyers, and activists. However, the recorded baseline on which we rely in our appreciation of nature can be a double-edged sword — provided we do not pay attention to the problem of the shifting baseline syndrome, sustaining the Anthropocene .
In essence, the shifting baseline syndrome is quite simple and consists of two parts. First, it starts with the grave premise that each generation leaves the state of nature slightly worse for the next . Species become extinct whilst invasive alien species are introduced, and natural ecosystems are altered or destroyed; one generation at a time. And secondly, it is a psychological phenomenon that people are inclined to take the state of nature as recorded within their youth as a starting point for comparison to the present. And in turn, each generation adopts a different baseline for conservation practices — a hollowed-out version compared to the previous. This means that essential parts of the natural world are not only lost but also forgotten; a term coined as generational amnesia .
Once aware of this issue, the state of nature deemed as ‘sufficient’ in our modern times can be seen in an entirely different light. For example, the summer field painted by Jac van Looij at the turn of the previous century is now part of the collection of the Dutch Rijksmuseum. It portrays a rich field of blue flowers, most likely lupines. This may have been a common sight for the painter at the time in the Netherlands, but wildflower meadows have become increasingly rare due to significant levels of nitrogen deposition . A sight such as this, in turn, is at risk of escaping from our perceived baseline, falling prey to generational amnesia.
A plethora of other examples could be noted here. Tim Flannery, in his book Europe: the first 100 million years  portrays a story of environmental destruction — starting as early as the time of the hunter-gatherers. In his book, he argues that Europe can be deemed an empty ecosystem, devoid of large predators such as lions or keystone species such as elephants — all of which resided, and thrived, on the European continent before overexploitation drove many of these species, which were not used to human predation, locally extinct. In this regard, credit must be given to Arie Trouwborst and Jens-Christian Svenning, who unravelled the shifting baseline and highlighted the moral and legal obligation for the restoration of megafauna on the European continent — especially when reviewing article 8(f) of the Convention on Biological Diversity (CBD) . Within their article, they convincingly argue that the loss of megafauna impacts the functioning of ecosystems and the prospects of biodiversity at large, due to their vital function as ecosystem engineers. In other words, the restoration of keystone species still surviving elsewhere is a key objective ahead — which would require the shattering of our generational amnesia.
The Shifting Baseline Syndrome: embedded within legal instruments?
This brings us to the baseline currently recorded within the instruments of nature conservation law. European nature conservation law, in turn, can pose as a relevant and leading example; the Natura 2000 network reaches 18% of the continent and is the largest coordinated ecological network in the world. However, the European Natura 2000 network establishes the benchmark recorded within the year 1992 for most natural habitats, both as a baseline for its conservation measures, and for assessing which habitat types can be deemed to be in favourable conservation status.
A recent Proposal of the European Commission, which supplements the Habitats Directive, proposes restoration measures going back at least seventy years in time, which has opened the door to implement a historic approach — should the Proposal be adopted . However, when reviewing the environmental destruction which occurred in the past centuries, seventy years, whilst a considerable amount of time compared to a human lifespan, merely reaches the top of an iceberg — consisting of centuries of overexploitation and land-use changes. An integrated approach to halting the decline of biodiversity loss is much-needed, as is illustrated below. 
Looking beyond the modern state of nature
In conclusion, it is vital that society at large is aware of the limitations imposed by the Shifting Baseline Syndrome and generational amnesia. With the help of ecologists, natural historians, and lawyers, returning long-lost species back to the European continent may not be a crazed idea. As is argued by Trouwborst; how can we demand that Africans live together with megafauna when Europeans refuse to do so themselves?
In this regard, a recorded baseline codified within a legal instrument is not an inherently bad tool. However, a modern baseline can be deemed an Achilles heel for restoration practice. Environmentalists, therefore, must be aware of the shifting baseline, so that the wildflower meadows from van Looij may not be forgotten in a hundred years’ time. And, more crucially, for nature restoration laws to be effective, a historic baseline that can still reach parts of the Holocene may be desirable going forward — both from the perspective of good (biodiversity) governance, as well as our personal understanding and appreciation of the natural world.
 Global Assessment Report on Biodiversity and Ecosystem Services (IPBES secretariat, 2022)
 The IUCN Red List Of Threatened Species (IUCN, 2022)
 Verschuuren J, ‘Restoration Of Protected Lakes Under Climate Change: What Legal Measures Are Needed To Help Biodiversity Adapt To The Changing Climate? The Case of Lake Ijssel, Netherlands’  SSRN Electronic Journal; Hoek N, ‘The Habitats Directive And Heath: The Strain of Climate Change and N Deposition’ (2022) 31 European Energy and Environmental Law Review.
 Schoukens H, ‘Non-Regression Clauses in Times of Ecological Restoration Law: Article 6(2) of the EU Habitats Directive as an Unusual Ally to Restore Natura 2000?’ (2017) 13 Utrecht Law Review.
 Caro T & others, Conservation in the Anthropocene – chapter in Keeping the Wild, ed. George Wuerthner, Eileen Crist, Tom Butler (2014: Island Press, Washington, DC)
 Europe: The First 100 Million Years, Tim Flannery (2014: Penguin, UK)
 Jones L & others, ‘Investigating the Implications of Shifting Baseline Syndrome on Conservation‘ (2020) People and Nature, Volume 2 Issue 4.
 Nitrogen (Wageninen University & Research, 2022)
 as 
 Trouwborst A, and Svenning J, Megafauna restoration as a legal obligation: International biodiversity law and the rehabilitation of large mammals in Europe, (2022) Review of European, Comparative & International Environmental Law, Volume 31, Issue 2; ‘Megafauna Restoration is a Legal Obligation‘ (Rewilding Europe, 2022)
 ‘Green Deal: pioneering proposals to restore Europe’s nature by 2050 and halve pesticide use by 2030‘ (European Commission, 2022)
 ‘Global biodiversity loss can still be halted’ (Wageninen University & Research, 2020)
Find out more
You can explore the background to the problem in Are You Suffering From Shifting Baseline Syndrome? by Reagan Pearce for Earth.Org (19 June 2020): “Coined by Daniel Pauly in 1995, while speaking of increasing tolerance to fish stock declines over generations, SBS also has roots in psychology, where it is referred to as ‘environmental generational amnesia’. Simply put, Shifting Baseline Syndrome is ‘a gradual change in the accepted norms for the condition of the natural environment due to a lack of experience, memory and/or knowledge of its past condition’. In this sense, what we consider to be a healthy environment now, past generations would consider to be degraded, and what we judge to be degraded now, the next generation will consider to be healthy or ‘normal’.” There is an interview with Daniel Pauly for Mission Blue (March 2012) here, following his TED Talk on the Ocean’s Shifting Baseline.
In Spot the difference: shifting baseline syndrome in our own backyard for ZSL (24 July 2018), PhD student Lizzie Jones looks at the phenomenon of shifting baseline syndrome with “a rare example of a positive shifted baseline, in which we have not noticed positive change” — the growing population of Red Kite in the UK after successful reintroduction projects.
And Shifting Baseline Syndrome is one of the terms explored in the book Anticipatory history (2011), edited by Caitlin DeSilvey, Simon Naylor and Colin Sackett (Uniform Books) – reviewed for ClimateCultures by Mark Goldthorpe here.