In 2015, a Pakistani court in the case of Leghari v. Federation of Pakistan made history by accepting arguments that governmental failures to address climate change adequately violated petitioners’ rights. This case forms part of an emerging body of pending or decided climate change-related lawsuits that incorporate rights-based arguments in several countries, including the Netherlands, the Philippines, Austria, South Africa, and the United States (US). These decisions align with efforts to recognize the human rights dimensions of climate change, which received important endorsement in the Paris Agreement. The decisions also represent a significant milestone in climate change litigation. Although there have been hundreds of climate-based cases around the world over the past two decades – especially in the US – past and much of the ongoing litigation focuses primarily on statutory interpretation avenues. Previous efforts to bring human rights cases have also failed to achieve formal success. The new cases demonstrate an increasing trend for petitioners to employ rights claims in climate change lawsuits, as well as a growing receptivity of courts to this framing. This ‘rights turn’ could serve as a model or inspiration for rights-based litigation in other jurisdictions, especially those with similarly structured law and court access.

The inadequacies of the inter-state institutions and negotiating processes central to international climate policy create a pressing need for governance innovation. This article proposes one promising and feasible approach: strengthening the existing transnational regime complex for climate change. Leading organizations could strengthen the regime complex by forging stronger links among institutions, increasing coordination and collaboration, supporting weaker institutions and encouraging the entry of new ones where governance gaps exist. An enhanced regime complex would have a multilevel structure, enabling transnational institutions to bypass recalcitrant national governments by directly engaging sub-state and societal actors at multiple levels of authority and scale. It would also help to manage recalcitrant states by mobilizing advocacy, demonstration effects and other pressures on governments. Regime entrepreneurs, using the strategy of orchestration, could deploy a range of incentives and other tools of influence to enrol, support and steer transnational organizations.

The weaknesses of our environmental laws stem in large part from the fact that legal systems treat the natural world as property that can be exploited and degraded, rather than as an integral ecological partner with its own rights to exist and thrive. This article analyzes the recent rise of a new generation of environmental laws which reject the ‘false dogma’ of ‘humans over nature’ and instead recognize our interconnectedness with the natural world and acknowledge its rights to exist, persist, and maintain its vital cycles. The article focuses on the transition from an anthropocentric approach, denoted by the ‘right to the environment’, to a biocentric approach constructed around ‘rights of nature’. This transition is evident in various new legal instruments – the Ecuadorian Constitution, certain Bolivian laws, and numerous ordinances of the United States – which incorporate and respect rights of nature, and grant legal rights to the natural world and enforcement rights to affected communities. These instruments serve as models for legal systems which can steer us towards more robust and effective environmental laws.

Our point of analytical departure is that the state of the global environment is deteriorating despite the accumulating body of international environmental law. By drawing on the recent Earth system science concept of interlinked planetary boundaries, this article makes a case for a goal-oriented, purposive system of multilateral environmental agreements. The notion of ‘goal’ is used here to mean a single, legally binding, superior norm – a grundnorm – that gives all international regimes and organizations a shared purpose to which their specific objectives must contribute. A bird’s eye view of the international environmental law system reveals how the absence of a unifying goal has created a condition that is conducive to environmental problem shifting rather than problem solving. We argue that a clearly agreed goal would provide the legal system with a point of reference for legal reasoning and interpretation, thereby enhancing institutional coherence across Earth’s subsystems. To this end, this article concludes by observing that the protection of the integrity of Earth’s life-support system has emerged as a common denominator among international environmental law instruments. Accordingly, we suggest that this notion is a strong candidate for the overarching goal of international environmental law.

The system of investor-state dispute settlement (ISDS) found in over 3,000 bilateral investment treaties and numerous regional trade agreements has been criticized for interfering with the rights of sovereign states to regulate investment in the public interest, for example, to protect the environment and public health. This article argues that while much of the public debate around ISDS has focused on a small number of cases that have arisen over the regulation of tobacco packaging, there is a far greater threat posed by the potential use of ISDS by the fossil fuel industry to stall action on climate change. It is hypothesized that fossil fuel corporations will emulate a tactic employed by the tobacco industry – that of using ISDS to induce cross-border regulatory chill: the delay in policy uptake in jurisdictions outside the jurisdiction in which the ISDS claim is brought. Importantly, fossil fuel corporations do not have to win any ISDS cases for this strategy to be effective; they only have to be willing to launch them. The article concludes with three options to reform trade and investment agreements to better align them with climate change mitigation efforts: (i) exclude ISDS provisions; (ii) prohibit fossil fuel industries from accessing ISDS; or (iii) carve out all government measures taken in pursuit of international obligations (for example, under the Paris Agreement on climate change) from challenge under ISDS.

This article investigates the relationship between legal personality for nature and Indigenous philosophies by comparing two cases: the Ecuadorian Constitution of 2008 and the 2014 Te Urewera Act of Aotearoa, New Zealand. Through these case studies the article considers the nature of Indigenous relations with the concept of rights of nature, arguing that this relation is primarily strategic, not genealogical. The article engages with the concept of legal personality and shows that it is not a direct translation of Indigenous conceptions, but rather a potential straitjacket for Indigenous emancipatory politics. The radical character of Indigenous ontologies is not fully reflected in the concept of legal personality. Furthermore, the way in which rights are granted to the natural environment is an important part of the effect that such rights might have on Indigenous communities. Despite some affinities between rights of the environment and Indigenous philosophies, overstating the connection might constrain the radical political and legal implications of Indigenous thought.

The work on ‘regime complexes’ – loosely coupled regimes linked through non-hierarchical relationships – provides a lens for understanding the increasing density of international rules and institutions. However, the role of private authority in the regime complex – situations where non-state actors set rules or standards that other actors adopt – has only recently received academic attention. In this article, we ‘unbundle’ the concept of the regime complex in two novel ways. Firstly, we argue that an accurate depiction of any regime complex must also include private authority. Secondly, using examples from environmental governance, we carefully elaborate four specific mechanisms through which public and private authority interact, demonstrating the ways in which private authority can improve the problem-solving capacity of regime complexes. In short, a full understanding of the contributions of private authority to solving environmental problems requires examining its interactions with public rules and institutions.

The rapid emergence of rights of Nature over the past decade across multiple contexts has fostered increasing awareness, recognition, and, ultimately, acceptance of rights of Nature by the global community. Yet, too often, both scholarly publications and news articles bury the lede – namely, that the most transformative cases of rights of Nature have been consistently influenced and often actually led by Indigenous peoples. In this article we explore the ontologies of rights of Nature and earth jurisprudence, and the intersections of these movements with the leadership of Indigenous peoples in claiming and giving effect to their own rights (while acknowledging that not all Indigenous peoples support rights of Nature). Based on early observations, we discern an emerging trend of increased efficacy, longevity, and transformative potential being linked to a strongly pluralist approach of lawmaking and environmental management. A truly transformative and pluralist ecological jurisprudence can be achieved only by enabling, and empowering, Indigenous leadership.

Juridical protection of the rights of nature is steadily emerging in several legal systems and in public discourse. Building on a recent publication in Transnational Environmental Law in which we interrogated Ecuador’s constitutional experiment with the rights of nature, we critically reflect in this contribution on Bolivia’s legal regime providing for the rights of Mother Earth. We do so, first, by sketching the juridical-political context within which these statutes were drafted and adopted, and then by analyzing the relevant constitutional provisions that provide the basis for the laws of Mother Earth. The third part forms the bulk of the discussion and details the background and the most relevant provisions of Bolivian statutes with a view to enabling a deeper critique in Part 4, in which we critically evaluate both the symbolic and the theoretical significance of the statutes as well as concerns related to their practical implementation. Insofar as the rights of nature paradigm has now become a truly global debate and a consideration in transnational comparative legal borrowing practices, our analysis aims to reveal the Bolivian experience, which could be instructive for civil society groups, academics, politicians and legislatures in a transnational setting.

The Paris Agreement has struck a careful balance between the need for ambitious and effective climate action and for fair effort sharing among parties based on differentiation. This article provides an overview of the negotiation history of differentiation and analyzes the ‘dynamic differentiation’ as built into the architecture of the Agreement. While being set against the normative background of the United Nations Framework Convention on Climate Change (UNFCCC), the Paris Agreement adopts a more diversified way of differential treatment among parties, approaching it in three complementary ways: firstly, on a principled basis, reflecting common but differentiated responsibilities and respective capabilities (CBDR-RC), in the light of different national circumstances; secondly, in the content of its articles, in particular on mitigation, finance and transparency; and thirdly, on the basis of the principles of progression and highest possible ambition, which represent new and dynamic aspects of differentiation. The authors argue that ‘highest possible ambition’ is reflective of a duty of care that states now need to exercise. It implies a due diligence standard, which requires each government to act in proportion to the risk at stake and to take all appropriate and adequate climate measures according to its responsibility and its best capabilities. By expecting parties to apply this standard at each successive preparation of nationally determined contributions (NDCs), and to progress beyond previous ones, the Paris Agreement has set up reiterative processes, an ‘international normative pull’ and a collective learning environment. This, in turn, creates a reflexive approach to parties’ determination of effort, promoting the evolution of voluntary cooperative behaviour.

The recognition of rivers and related ecosystems as legal persons or subjects is an emerging mechanism in transnational practice available to governments in seeking more effective and collaborative natural resource management, sometimes at the insistence of indigenous peoples. This approach is developing particularly quickly in Colombia, where legal rights for rivers and ecosystems are grasping onto, and evolving out of, constitutional human rights protections. This enables the development of a new type of constitutionalism of nature. Yet legal rights for rivers may obscure the rights of indigenous peoples and their role in resource ownership and governance. We argue that the Colombian river cases serve as a caution to courts and legislatures elsewhere to be mindful, in devising ecosystem rights, of the complex and interrelated rights, interests and tenures of indigenous peoples and local communities.

The prospect of climate engineering (CE) – also known as geoengineering, referring to modification of the global environment to partly offset climate change and impacts from elevated atmospheric greenhouse gases – poses major, disruptive challenges to international policy and governance. If full global cooperation to manage climate change is not initially achievable, adding CE to the agenda has major effects on the challenges and risks associated with alternative configurations of participation – for example, variants of partial cooperation, unilateral action, and exclusion. Although the risks of unilateral CE by small states or non-state actors have been over-stated, some powerful states may be able to pursue CE unilaterally, risking international destabilization and conflict. These risks are not limited to future CE deployment, but may also be triggered by unilateral research and development (R&D), secrecy about intentions and capabilities, or assertion of legal rights of unilateral action. They may be reduced by early cooperative steps, such as international collaboration in R&D and open sharing of information. CE presents novel opportunities for explicit bargaining linkages within a complete climate response. Four CE-mitigation linkage scenarios suggest how CE may enhance mitigation incentives, and not weaken them as commonly assumed. Such synergy appears to be challenging if CE is treated only as a contingent response to a future climate crisis, but may be more achievable if CE is used earlier and at lower intensity, either to reduce peak near-term climate disruption in parallel with a programme of deep emission cuts or to target regional climate processes linked to acute global risks.

Traditional custodians of the Martuwarra (Fitzroy River) derive their identity and existence from this globally significant river. The First Laws of the Martuwarra are shared by Martuwarra Nations through a common songline, which sets out community and individual rights and duties. First Law recognizes the River as the Rainbow Serpent: a living ancestral being from source to sea. On 3 November 2016, the Fitzroy River Declaration was concluded between Martuwarra Nations. This marked the first time in Australia when both First Law and the rights of nature were recognized explicitly in a negotiated instrument. This article argues for legal recognition within colonial state laws of the Martuwarra as a living ancestral being by close analogy with the case concerning the Whanganui River. We seek to advance the scope of native title water rights in Australia and contend that implementation of First Law is fundamental for the protection of the right to life of the Martuwarra.

Today, numerous constitutions provide for a rights-based approach to environmental protection. Based as they are on an instrumentalist rationality that seeks to promote human entitlements to nature, the majority of these rights remain anthropocentric. Although there are growing calls within academic and activist circles to reorient rights alongside an ecocentric ontology, only one country to date has taken the bold step to bestow rights on nature in its constitution. The Ecuadorian Constitution of 2008 announces the transition from a juridical anthropocentric orientation to an ecocentric position by recognizing enforceable rights of nature. This article critically reflects on the legal significance of granting rights to nature, with specific reference to Ecuador’s constitutional experiment. It first provides a contextual description of rights in an attempt to illustrate their anthropogenic genesis, and then explores the notion of environmental rights. The following part traces the discourse that has developed over the years in relation to the rights of nature by revealing aspects of an ecocentric counter-narrative. The final part focuses specifically on the Ecuadorian constitutional regime and provides (i) a historical-contextual discussion of the events that led to the adoption of the rights of nature; (ii) an analysis of the constitutional provisions directly and indirectly related to the rights of nature; and (iii) a critical appraisal of whether those provisions, so far, measure up to the rhetoric of constitutional ecocentric rights of nature in that country.

As international negotiations struggle to deliver timely, binding commitments to reduce greenhouse gas emissions to safe levels, the environmental legal community has begun to contemplate the scope for climate governance ‘beyond’ the international climate change regime. Many see merit in a more decentralized, disaggregated approach, operating across multiple governance levels. This article examines the development of climate change law in an era of multi-level governance. It analyzes several case studies of current manifestations of multi-level governance in climate change law, including the fragmented global emissions trading system, developing arrangements governing forests and land-based sinks, the growth of climate litigation establishing transnational liability principles, efforts to ensure adaptation to unavoidable climate change, and the emergence in federal systems of a decentralized approach to climate change regulation. The article concludes by considering whether the emerging multi-level system of climate governance is adequate to meet broader international goals of climate change mitigation and adaptation.

There is a compelling argument for developing a low carbon emissions trajectory to mitigate climate change and for doing so urgently. What is needed is a transformation of the energy sector and an ‘energy revolution’. Such a revolution can only be achieved through effective energy governance nationally, regionally, and globally. But frequently such governance is constrained by the tensions between energy security, climate change mitigation and energy poverty. At national level, there is a chasm between what is needed and what governments do ‘on the ground’, while regionally and globally, collective action challenges have often presented insurmountable obstacles. The article examines what forms of energy law, regulation and governance are most needed to overcome these challenges and whether answers are most likely to be found in hierarchy, markets, or networks.

Liability for causing or failing to mitigate climate change has long been proposed as an alternative, or backstop, to lagging international cooperation. Thus far, there has been very limited success in holding governments or individuals responsible for the emission of greenhouse gases (GHGs) that are considered the primary cause of anthropogenic climate change. The recent landmark decision in Urgenda Foundation v. Government of the Netherlands (Ministry of Infrastructure and the Environment) breaks with this tradition. In June 2015, the Dutch District Court (The Hague) held that the current climate policies of the government are not sufficiently ambitious for it to fulfil its duty of care towards Dutch society. The judgment, and the accompanying order for the government to adopt stricter GHG reduction policies, raises important questions about the future of climate change liability litigation, the separation of powers between the judiciary and the legislature, and the effect of litigation on international climate change negotiation and cooperation.

Sustainable development (or sustainability) is a decision-making framework for maintaining and achieving human well-being, both in the present and into the future. The framework requires both consideration and the achievement of environmental protection, social justice and economic development. In that framework, environmental protection must be integrated into decisions about social and economic development, and social justice and economic viability must be integrated into decisions about environmental quality.

As sustainable development has grown in prominence, its critics have become more numerous and more vocal. Three major lines of criticism are that the term is ‘too boring’ to command public attention, ‘too vague’ to provide guidance, and ‘too late’ to address the world’s problems. Critics suggest goals such as abundance, environmental integrity, and resilience. Beginning with the international agreements that have shaped the concept of sustainable development, this article provides a functional and historical analysis of the meaning of sustainable development. It then analyzes and responds to each of the above criticisms. It argues that the critics, understood constructively, suggest ways of strengthening this framework, but do not provide a compelling alternative. The challenge for lawyers, lawmakers, and others is to use and improve the sustainability framework to make better decisions.

On 9 October 2018, the Court of Appeal of The Hague (the Netherlands) upheld the District Court’s decision in the case of Urgenda, thus confirming the obligation of the Netherlands to reduce its greenhouse gas (GHG) emissions by at least 25% by 2020 compared with levels in 1990. This case raised some of the thorniest issues in climate law. As the Netherlands is responsible for only a tiny fraction of global GHG emissions, is it right for a court to hold that a national emissions reduction mitigation target is necessary to prevent dangerous climate change and its impact on human rights? If so, how can this target be determined? The District Court and the Court of Appeal of The Hague have provided inspiring responses, although they are perhaps not entirely convincing.

Cases involving climate change have been litigated in the courts for some time, but new directions and trends have started to emerge. While the majority of climate litigation has occurred in the United States and other developed countries, cases in the Global South are growing both in terms of quantity and in the quality of their strategies and regulatory outcomes. However, so far climate litigation in the Global South has received scant attention from the literature. We argue that climate litigation in the Global South opens up avenues for progress in addressing climate change in highly vulnerable countries. We first highlight some of the capacity constraints experienced in Global South countries to provide context for the emerging trend of strategic climate litigation in the area. In spite of significant constraints experienced, the strategies adopted by litigants push the climate litigation agenda forward as a result of their outward-looking objective of combating ongoing environmental degradation, and, on a doctrinal level, the way in which they link climate change and human rights. Bearing in mind the limitations resulting from the selective nature of the cases examined, we draw upon Legal Opportunity Structures (LOS) approaches and identify two reasons for innovative cases and outcomes in Global South strategic climate litigation: (i) how litigants are either overcoming or using procedural requirements for access to environmental justice, and (ii) the existence of progressive legislative and judicial approaches to climate change. The strategies and outcomes from these judicial approaches in the Global South might be able to contribute to the further development of transnational climate change litigation.