Biodiversity Offsetting and Relational Values: Addressing inclusion and legitimate expectations

In the face of the ongoing biodiversity crisis, questions are arising regarding the success, or lack thereof, of biodiversity offset schemes, where biodiversity losses from human development are compensated by producing equitable gains elsewhere. The overarching goal of offsetting is to deliver no net loss (NNL) of biodiversity. Assessing whether offsetting does indeed deliver NNL is, however, challenging because of a lack of clear and reliable information about offset schemes. Here we consider barriers in tracking NNL outcomes, outline criteria of public offset registers to enable accessible and credible reporting of NNL, and show how existing registers fail to satisfy those criteria. The lack of accessibility and transparency in existing registers represents a fundamental gap between NNL targets and a valid tracking system, which challenges the impetus to enact the transformative changes needed to reverse biodiversity decline.

Biodiversity offsetting is a highly debated topic in biodiversity governance. On the one hand, offsetting provides a promising new conservation tool that can make the loss of ecological values visible and increasing conservation funding. On the other hand, increased role of market mechanisms and private actors poses a risk of commodifying nature or failing to meet the ecological outcome. Thus, offsetting can also be considered as an ethically problematic shift in nature conservation. Despite such controversies, biodiversity offsetting is an increasingly important biodiversity policy instrument globally. There is considerable variation in the types of offsetting policies adopted in different countries. However, the political debates related to offsetting policymaking have rarely been analyzed. To gain a more nuanced understanding on how these controversies can influence the adoption and formulation of offsetting policies, we analyzed the formal introduction of biodiversity offsetting policy in the Nature Conservation Act in Finland. We applied frame analysis on the statements issued during the public hearing process to understand how stakeholders, public administration and active citizens perceive biodiversity offsetting. We identified four frames promoting varying implementation of the offsetting system. All the frames indicated that biodiversity offsetting was generally a welcomed addition to Finnish biodiversity policy. However, the frames were contradictory regarding the goal of offsetting, the level of regulation and the role of authorities and markets in their implementation, which can result in varying conservation outcomes. The debate resulted in slight emphasis of the pro-business perspective. A voluntary offsetting system was adopted.

As November's IUCN World Park Congress approaches, and the IUCN develops a policy on biodiversity offsets, we sense increasing excitement about the potential for biodiversity offsets as an innovative financing mechanism for protected areas. On the face of it, this is a win–win approach. Governments struggling to meet protected area goals could channel compensation for development impacts toward the establishment and management of protected areas. Developers could benefit from high-profile delivery of impact compensation, a clear route to transfer management responsibility, and assurance of the long-term outcomes that stakeholders require of biodiversity offsets. Indeed, conventional offsets are designed very much along the lines of new protected areas. Voluntary biodiversity offsets are thus being planned in protected areas around the world, and new government policy in countries such as Mongolia and Papua New Guinea is being designed to drive offset funds toward protected areas, following examples such as Funbio in Brazil. Win–wins are rarely, however, quite what they first appear. The core biodiversity offset principles of additionality, comparability, and longevity are all at risk when offsets are planned in protected areas. Instead of biodiversity offsets leading to No Net Loss, they could instead simply facilitate ongoing development impacts and erosion of biodiversity, to the ultimate detriment of protected areas. The biggest risk of channeling offset funds toward protected areas is cost-shifting, meaning that these new funds displace—rather than supplement—current or future funding committed to conservation. In such cases, compensation would not be additional—instead of reducing overall impacts of development, offsets would facilitate a continuing decline in biodiversity. Cost-shifting is a real, not a theoretical, phenomenon. For example, at a broader level, some developing countries have been accused of seeking development assistance for attractive sectors such as health, education or environment in order to free up core government funds for military spending. More specifically, we are aware of some developed-country jurisdictions that are actively capping or cutting funding to protected areas in anticipation that offset funding will fill the gap. So, should offsets never be allowed in protected areas, in case governments renege on their responsibilities? Almost 200 governments have adopted Aichi Target 11, committing to expand and effectively manage protected area networks. Perhaps offsets in protected areas should only be considered additional once this target is achieved nationally? This would avoid the risk of cost-shifting, but is a blunt approach—ignoring the severe underfunding of many protected areas and resultant biodiversity loss. This is likely to persist, despite the Aichi Target—governments struggling to fund primary healthcare will also struggle to resource effectively managed and representative protected area networks. A more practical solution to the cost-shifting problem could be to define and accept temporary additionality. Offsets in protected areas could be seen as additional until the stage in a country's economic development when a government could reasonably be expected to fully assume its protected area responsibilities. Such an approach would be familiar to international donors, which use global classifications of national income (e.g., from the Organisation for Economic Co-operation and Development) to prioritize aid funds to governments that cannot yet afford to assume core responsibilities. In practical terms, this approach would confine protected area offsets to lower income countries. Companies seeking short-term gains to compensate for short-term impacts would therefore face few challenges. For longer term offsets, a mechanism would be needed to refocus funding as national economies improved and core budgetary resources came on stream. Additionality is not the only concern. Prioritizing offsets in protected areas risks biodiversity in offset sites not being comparable to biodiversity in impact sites—i.e., "like-for-like or better." The global protected areas network is biased toward places that are relatively low in value for both biodiversity and economic activity. This presents a risk of trading the most threatened habitats for those that are already more secure, i.e., "trading down." Such risks could be reduced by large-scale planning combined with aggregated offset approaches, where compensation from multiple sources is pooled together. Landscape- or national-level planning in countries such as South Africa has been integrated into offset guidance, so that specific conservation targets can be met, and impacts on more threatened environments dissuaded, by increasingly onerous offset requirements (e.g., higher multipliers for the offset area needed). National offset frameworks could take this a step further by identifying conservation targets for each ecosystem and prioritizing aggregated offsets to support new (or better managed) protected areas where they are most needed. Overall, this should represent a system of "trading up," in which conservation is focused on the highest biodiversity priorities. Concerns about offset longevity—ensuring that offset gains last as long as development impacts—are particularly acute for offsets in protected areas, since a developer's stewardship responsibilities may be rapidly passed to a protected area authority. The solution remains the same as for other offsets: a solid guarantee of appropriately long-term funding for offset implementation by developers. Financing may best be secured using an independent funding mechanism. This has the added advantage of ensuring that compensation is reserved for offsets rather than entering general treasury funds: governments should not regard offset resources as just another form of taxation. Identifying the conditions for effective protected area offsets is not just an arcane technical discussion. At least 18 countries already have national government policies specifically requiring or guiding offsets, at least 29 others have policies suggesting or enabling the use of offsets, and these numbers are growing rapidly. Moreover, the issues we present here are not restricted to offsets in protected areas, but also apply to many situations in which there are expectations of an existing landowner or government duty of care. Biodiversity offsets hold much promise for helping expand and strengthen the protected area network in the developing world. To fulfil this promise, governments will need to design and implement policies that direct compensation from development projects to temporarily fill the most important protected area funding gaps. Conservation planners can assist governments and companies by refining methods for ensuring additionality, comparability, and longevity of offsets in protected areas, and contributing to science-based plans and policy guiding offset investment. Civil society scrutiny will be key during implementation, particularly for ensuring that protected area responsibilities are adopted by governments in-line with increasing revenues, and that there is sound governance of offset funding schemes. With these pieces all in place—a not inconsiderable challenge—offsets can contribute to saving, rather than sinking, protected areas. We thank Jez Bird, Tom Brooks, Jonathan Ekstrom, Phil Gibbons, David Keith, Suzanne Livingstone, Bruce McKenney, Edward Pollard, Hugo Rainey, Helen Temple, and James Watson for discussions that stimulated this manuscript.

Biodiversity offsetting involves the balancing of biodiversity loss in one place (and at one time) by an equivalent biodiversity gain elsewhere (an outcome referred to as No Net Loss). The conservation science literature has chiefly addressed the extent to which biodiversity offsets can serve as a conservation tool, focusing on the technical challenges of its implementation. However, offsetting has more profound implications than this technical approach suggests. In this paper we introduce the concept of policy frames, and use it to identify four ways in which non-human nature and its conservation are reframed by offsetting. Firstly, offsetting reframes nature in terms of isolated biodiversity units that can be simply defined, measured and exchanged across time and space to achieve equivalence between ecological losses and gains. Secondly, it reframes biodiversity as lacking locational specificity, ignoring broader dimensions of place and deepening a nature–culture and nature–society divide. Thirdly, it reframes conservation as an exchange of credits implying that the value of non-human nature can be set by price. Fourthly, it ties conservation to land development and economic growth, foreshadowing and bypassing an oppositional position. We conclude that by presenting offsetting as a technical issue, the problem of biodiversity loss due to development is depoliticized. As a result the possibility of opposing and challenging environmental destruction is foreclosed, and a dystopian future of continued biodiversity loss is presented as the only alternative.

Infrastructure development results in biodiversity loss due to loss and fragmentation of species’ habitats and land use and land cover changes. Biodiversity loss is an environmental challenge of global concern as biodiversity, and associated ecosystems, provide a range of invaluable services to society that underpins human health and well-being, security, and economic growth. These services include clean water and flood protection. As a result, there has been a growing interest in biodiversity offsetting as a policy instrument for financing biodiversity conservation on the ground or in the water during the past decade. This chapter will first define the concept of biodiversity offsets. The chapter will then review how their performance and success can be enhanced, followed by a review on how to ensure their financial sustainability. Finally, the chapter will provide a framework for preparing and implementing biodiversity offsets on the ground or in the water.

Meeting the UN Sustainable Development Goals requires reconciling development with biodiversity conservation. Governments and lenders increasingly call for major industrial developments to offset unavoidable biodiversity loss but there are few robust evaluations of whether offset interventions ensure no net loss of biodiversity. We focus on the biodiversity offsets associated with the high-profile Ambatovy mine in Madagascar and evaluate their effectiveness at delivering no net loss of forest. As part of their efforts to mitigate biodiversity loss, Ambatovy compensate for forest clearance at the mine site by slowing deforestation driven by small-scale agriculture elsewhere. Using a range of methods, including extensive robustness checks exploring 116 alternative model specifications, we show that the offsets are on track to avert as much deforestation as was caused by the mine. This encouraging result shows that biodiversity offsetting can contribute towards mitigating environmental damage from a major industrial development, even within a weak state, but there remain important caveats with broad application. Our approach could serve as a template to facilitate other evaluations and so build a stronger evidence-base of the effectiveness of no net loss interventions.

Biodiversity offsetting typically involves the trade of certain losses of habitat with uncertain future conservation benefits. Predicting the latter requires estimates of two outcomes; the biodiversity losses without conservation management (averted loss), and the biodiversity gains with conservation management (management gain). However, because empirical data to inform these estimates are limited, they are normally guided by expert opinion, often derived via unstructured methods without consideration of uncertainty. Here we used a structured elicitation with 29 experts to gather estimates of averted loss and management gain at offset sites. We used two methods; (i) experts estimated change in an aggregate biodiversity value (vegetation condition) and; (ii) experts provided probabilistic estimates of change for individual vegetation condition attributes, such as the richness and cover of plant growth forms. On average, experts predicted there would be only modest improvements with conservation management, yet uncertainty and variation among experts was large; in some cases, conservation benefits were not predicted. Estimates of change in vegetation condition suggested that benefits were from both averted loss and management gains and were thought to most likely arise in cases where starting condition was low to moderate. Similar patterns were observed for individual vegetation condition attributes, with management gains, relative to a reference, tending to be negatively correlated with starting value. Our study finds that: (i) on average, gains at offset sites are expected to be small, (ii) at many sites, experts do not believe gains can be obtained, and (iii) experts’ opinions can be divergent resulting in elevated levels of uncertainty. The potential for losses under conservation management highlights the need to: identify those components of biodiversity most likely to benefit from conservation management; better understand those situations when offset obligations are most likely to be met and conversely those situations with higher risk; and further develop offset mechanisms that encourage early or prior gains. These findings together with the global proliferation of biodiversity offsetting, provide a strong imperative to improve empirical data and investment in long-term, site-based monitoring of biodiversity outcomes at offset sites.

Biodiversity offsetting in dynamic landscapes: Influence of regulatory context and counterfactual assumptions on achievement of no net loss

Policy flaws of biodiversity offsetting as a conservation strategy

Biodiversity trajectories and the time needed to achieve no net loss through averted-loss biodiversity offsets

Mining significantly contributes to global economic development, accounting for approximately 6% of global GDP. However, its environmental impacts are severe, including acid mine drainage (AMD), water and air pollution, soil degradation, biodiversity loss, and greenhouse gas emissions. This study critically examines these challenges and evaluates mitigation and rehabilitation strategies for sustainable mining. A comprehensive review of peer-reviewed literature and case studies (1990–2023) was conducted, focusing on environmental impacts, mitigation measures, and rehabilitation outcomes. Key findings reveal that AMD contaminates water with heavy metals, while mining contributes significantly to greenhouse gas emissions and particulate matter, exacerbating climate change and public health risks. Biodiversity loss, particularly in sensitive regions like the Amazon, highlights mining’s ecological footprint. Mitigation strategies, such as renewable energy adoption, advanced water treatment systems, and circular economy principles, show promise but face challenges in scalability and cost. Rehabilitation efforts, including reforestation, land reshaping, and biodiversity offsets, have successfully restored degraded landscapes but require robust regulation and community participation. This study emphasizes the importance of integrating technological innovation, stringent regulations, and stakeholder engagement to address mining’s environmental legacy. Future research should focus on cost-effective technologies, socioeconomic impacts, and combating illegal mining to balance economic development with environmental sustainability.

BOOK REVIEW: edited by Ronald Sandler and Philip Cafaro.<i>ENVIRONMENTAL VIRTUE ETHICS</i>. New York and Oxford: Rowman &amp; Littlefield, 2005.

Realising a vision of no net loss through marine biodiversity offsetting in Australia

Biodiversity offsets are voluntary conservation activities that are designed to offset residual, unavoidable damage to biodiversity caused by development activities. The concept is also known by terms such as setasides, compensatory habitat, and mitigation banks. Recent legislation in New South Wales (Australia) provides an additional legislative tool in the attempt to counter balance biodiversity loss due to expanding urbanisation. A key role is played by the consultant ecologist who is at the interface between other vested interests: governments, the legal system, developers, and landholders wishing to trade biodiversity credits. In this paper we reflect on the role of the consultant ecologist in the biodiversity offset (“BioBanking”) process, and touch on some of the pitfalls including the lack of knowledge of the function and components of most ecosystems, the immaturity of the scientific disciplines that underpin decision making, and problems on ensuring integrity of objectivity and independence in such schemes.

24 - Offsetting Policies for Biodiversity Conservation: The Need for Compensating Habitat Relocation