International environmental law rarely refers to the rule of law. However, in fostering inter-state cooperation, international environmental agreements oblige parties to prohibit, restrict or control various activities that are harmful to the environment. The application of these constraints at the national level requires the rule of law to be taken into account.

This article revisits the overlooked field of comparative environmental law. It examines contributions to this field from the late 1960s to 2022, highlighting the methodologies proposed, their shortcomings, the main aspects and angles taken by the literature, and the curious lack of engagement by experts in comparative law proper with environmental law systems. On the basis of a structured examination of the literature, the article extracts four main aims or purposes that may guide this line of research: (i) clarifying the initial system by contrasting it with a foreign system; (ii) using the basic conceptual features of a known system to analyse and understand a foreign unknown system; (iii) evaluating and fine-tuning a system or an aspect thereof; and (iv) extracting analytical categories that can serve to map the entire field or areas of it.

Although legal transplants are a most fertile source of legal development, a failure to adapt their methods to local traditions and cultures before putting them into practice often results in the loss of indigenous legal cultures. This article examines environmental jurisprudence in Nigeria. It aims to determine whether the failure of these laws to curb the trend of unsustainable natural resource use in the country is traceable to the indigenous legal cultures of sustainability that were lost in the process of transplanting colonial ideologies into the Nigerian legal system. The article submits that neglecting the innate standards of sustainability in Nigeria's environmental law-making (a practice adopted since the period of colonization) has made the extant laws on natural resource sustainability largely ineffective. It recommends reworking some of the laws to reflect the lost traditions and notes the cultural imperative for natural resource sustainability.

There has been a turn to fundamental rights in environmental and climate cases before national and international courts in recent years. We know very little whether there has been such a turn in relation to European Union (EU) law before the Court of Justice of the European Union (CJEU). The CJEU occupies an increasingly relevant position in this nexus between environmental law and human rights because of strong and effective EU enforcement mechanisms, the abundance of specific EU secondary environmental law, the growing role of fundamental rights since 2009 and the self-standing provision on the environment in Article 37 of the Charter. An analysis of the case law, nonetheless, shows that Charter rights that can be used as ‘swords’ in the interest of environmental protection have so far played only a limited role. After explaining the absence of a rights turn, we argue that such a turn is warranted before the CJEU as well, also from a legal perspective. This article examines two potential avenues. The CJEU can derive positive obligations from relevant Charter provisions, including Articles 2 (right to life) and 7 (right to respect for private life and the home) of the Charter, or it can rely more extensively on Article 37 as a tool for interpreting primary and secondary EU law in an environmentally friendly way.

Environmental law has long been an area of concern in terms of correct implementation and enforcement. In this context, the Commission’s enforcement focus has been on “systemic” breaches of environmental law (that is, breaches that form part of a pattern of individual breaches that, taken together, because of their repeated or widespread nature, have a significant effect on the environment). Proving the existence of such breaches in environmental law presents a number of peculiar features, because of the scientifically–loaded questions which underlie environmental legislation. The aim of this article is to relate the established approach of the CJEU towards scientific uncertainty to the specific situation in which the Commission asserts that a breach of EU environmental law has a systemic nature. It will show that, while the CJEU has been sensitive to the systemic nature of the claims brought forward by the Commission by using some of the procedural tools at its disposal, its general reticence to engage with the substantive claims at stake might have the potential to reduce the effectiveness of the infringement proceedings as a tool to adequately pursue systemic breaches of EU environmental legislation.

Increasing research has been devoted to examining collaborations between public and private actors in environmental regulation under neoliberal democracies. However, this public-private interaction in authoritarian regimes remains understudied. This article seeks to address this gap in the literature through an empirical examination of the interaction between environmental non-governmental organizations (NGOs) and procuratorates in China's environmental public interest litigation. We find emerging complementarity: NGOs focus on new issues and target high-profile defendants to increase the socio-legal impact of their civil litigation, whereas procuratorates increasingly engage in administrative litigation against government agencies. This complementarity is shaped by the different legal opportunities for Chinese NGOs and procuratorates, as well as their respective institutional objectives and capacities. Their divergent regulatory preferences have also fostered synergy between these two actors, allowing them to collaborate on legal experimentation and innovation.

A principle that prohibits States from weakening their domestic levels of environmental protection continues to emerge at varying speeds within international trade, investment and environmental law. This article explores the principle's diverse history, rationale and legal expression in each of these domains and finds that its various articulations in different international treaties suffer the same shortfalls and deficiencies. Non-regression clauses may leave the complexities and nuances of implementing environmental protections unaddressed, including identifying and measuring when a regression has occurred and balancing these environmental protections with other legitimate policy and environmental measures. As these clauses are increasingly subject to investor–State and State–State dispute procedures, States expose themselves to heightened liability for changes to their environmental laws, even where those changes might be legitimate and reasonable. The particular emergence of this principle in environmental law offers treaty-makers an opportunity to clarify the rights of States to derogate from otherwise narrowly drafted clauses that require them to maintain their level of environmental protection strictly.

This paper investigates the knowledge of the general public on the legislative framework relating to wildlife conservation in England, with a specific focus on the Bern Convention and the public's awareness of the treaty, as well as the domestic legislation transposing it. By creating a publicly available survey, the study determined the environmental attitudes of the public and their knowledge of the legislative regime relating to wildlife conservation. Whilst the majority of the public displayed pro-environmental attitudes and support for greater efforts towards the conservation of flora and fauna, the overall awareness of the legislation was worryingly low, with only 5.6% of respondents recognising the Bern Convention. Accordingly, the study investigated how awareness of environmental legislation may be increased. Ultimately, the paper concludes that formal environmental education, including legislation, must be optimised, and the domestic legislative framework should be further consolidated.

In this paper, we begin reflecting on how ‘futures literacy’ – recently championed by UNESCO as a vital skill that allows people to better understand the role of the future in what they see and do – might be developed in environmental law pedagogy. Law and legal analysis tend to be absent from futures scholarship and we discuss various ways of engaging with environmental law as an important but underexplored site and means of future-making. We consider our shared teaching of an undergraduate module in which students examine historical legislation for what it says about past ideas of the environment's future and the action within the law necessary to safeguard it; and contemporary texts, including science fiction and poetry, imagining a future for the environment on and through which law operates. Futures literacy, we argue, is at its richest when ‘historical futures’ and ‘future futures’ are read together, or alongside one another.

Biological invasions represent one of the main threats to biodiversity and a recognized economic burden worldwide; the issue has been included in the conservation agenda such as the Convention on Biological Diversity (CBD). Brazil is a signatory country of the CBD; however, the number of alien species records in its territory is continuously rising. To evaluate the invasive alien species (IAS) policy in Brazil, we reviewed the legislation delineating historical trends to identify potential gaps and avenues for improvement. We consulted several websites using keywords related to invasions in order to track legal instruments such as laws, decrees and regulations. We classified the documents regarding their main aims with regard to IAS, taxon and environment of interest. We found 85 legal instruments in force related to IAS published in the federal sphere up to October 2021, with decrees being the most common type. Most documents were classified as ‘control’ and ‘prevention’ and were related to all taxa and environments. Two species (wild boar Sus scrofa and golden mussel Limnoperna fortunei) have more specific legislation, probably due to their conspicuous economic impacts. We discuss policy gaps and their implications for the efficient management and prevention of new IAS introductions to the country.

The global climate crisis poses many risks; for instance, relating to the environment, to the economy and to public health. The mitigation and management of such risks create a complex and multifaceted regulatory conundrum that requires quick, flexible, efficient and adaptive policy solutions that transcend the state level. A quick look in the body of regulatory instruments employed in the field of climate change policy will reveal that soft law is used very frequently by the European Commission to aid with the application, transposition and interpretation of European Union (EU) environmental legislation relating to climate change. While soft law has become ever more prominent in the EU legal order and has been studied extensively at the ex-post phase (ie concerning its effects or effectiveness), little academic attention has been paid to the process of soft law-making. In simple terms, we know very little about how soft law instruments are made. This article peeks behind the scenes of soft law and examines the transparency and participation credentials of the articulation process of Commission Guidance Documents in the field of climate change regulation adopted under key legal acts in the field.

This paper makes a case for the integration of compulsory climate change topics across the core law curriculum. It argues that the most persuasive rationale for this is based in climate legal obligations and institutions, and a clear-eyed perception of climate risk, rather than the sustainability agenda. To this end, the paper outlines efforts taken to ‘mainstream’ climate change and environmental law education in a core course of the LLB degree – land law. An empirical study sought to evaluate the students’ engagement with these materials, and their broader views concerning climate change and their legal education. The paper critically evaluates the course and the results of the empirical study. It concludes that students want to be, and should be, taught climate law and the climate context of law as part of their prescribed learning throughout the core curriculum, rather than as optional or elective content.

This paper analyses the EU proposal for a carbon border adjustment mechanism (CBAM) and a recent US proposal for the establishment of a border carbon adjustment (BCA) as examples of ‘defensive’ policies, broadly informed by an economic level playing field and an environmental level playing field rationale. From an environmental law perspective, the CBAM's narrow focus on price-based policies, distortions of competition and trade intensity is unsatisfactory; however, the EU CBAM is more feasible in practical terms and overall more likely to be WTO law compatible than the US proposal for a BCA. An environmental level playing field perspective is associated with several practical problems: these relate to the determination of environmental equivalence, the identification of appropriate remedies, and the demarcation of the scope of application of the relevant regulatory arrangements. Further, measures informed by an economic level playing field rationale can be easier to justify under WTO law. Taking stock of these findings, the paper concludes that practical obstacles and structural legal constraints push towards a narrower focus on an economic level playing field, as a matter of regulatory design.

International clean technology diffusion is essential to mitigate and adapt to climate change, while fast and optimal diffusion can be prevented by the paywall of patents. This article explores the deficiency in clean technology diffusion caused by the legal fragmentation and rule complex of international environmental law and intellectual property law. It systematically examines three pathways to foster international clean technology diffusion through: restriction of intellectual property, including imposing external restraints in environmental law; striking internal balancing in maximizing TRIPS flexibilities; and keeping the status quo. It argues that treaty pathways may not work, and an operable pathway to promote clean technology diffusion is to maximize and consolidate TRIPS flexibilities in national laws. This option challenges the popular proposal of a “Doha-like” declaration on TRIPS and climate change due to the paralyzed multilateral trade mechanism, asymmetrical negotiation power of developing countries, prolonged negotiation process, and categorization problem in treaty negotiations.

Even throughout a global pandemic, climate change continues to be a fiercely discussed topic—both politically and legally—the world over. Particularly in light of the many Covid-19 related financial aid programs (including transnational ones) and the associated economic stabilization and reconstruction plans, a sustainable climate policy and legal order should be expected to play a role for an economy that has fallen into a slump. Nevertheless, a lively discussion on how best to achieve climate protection continues to take place in already established systems such as the private law system. Here, as far as climate change is concerned, tort law appears to be the focus of these discussions. The extent to which tort law and the issue of climate change can be brought together is also increasingly being discussed in Germany. This article attempts to shed light on the questions of how tort law could contribute to the mitigation of climate change and how climate change could fit into the law of torts of the German civil law legal system.