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Governments must report on the conservation status of species designated as protected. We assessed changes in the Near Threatened Eurasian otter Lutra lutra population throughout Ireland (the whole island) from the 1980s to the 2020s using four National Otter Surveys (6,060 sites surveyed) and citizen science data (10,980 records). In 2023–2024, otters were recorded at 65% (95% CI 62–68%) of sites in the Republic of Ireland and 66% (95% CI 58–74%) of sites in Northern Ireland. Rivers, lakes and coasts were included in the surveys. Long-term trends in the population estimate indicate a decline of 24−27% (or 3−18% after correction for negative methodological biases). Short-term trends indicated changes of −7% to +2% in the Republic of Ireland and −26% to −27% in Northern Ireland. Otters remain widespread, having been recorded in 95% of hectads (10 × 10 km squares), with no range reduction. They prefer wide, fast-flowing rivers with rocky substrates, unmaintained banks, and riparian woodlands (trees and shrubs), and are positively associated with angling (probably because of salmonid prey) but negatively with peatlands. Eleven pressures were identified, notably site disturbance, including agricultural pollution, siltation and water abstraction, which increased over time. No single pressure threatens otters nationally, but cumulative effects on water quality and ecosystems likely contributed to the decline. Future research should account for potential negative methodological biases, disaggregating detection from occupancy probability to capture the magnitude of any change more accurately, and future surveys should adopt techniques less vulnerable to biases (e.g. environmental DNA detection in water samples).
A loosely aligned, informal grouping of developing states is pressing for a strong plastics treaty. This article evaluates the past influence and future prospects of this “quasi-bloc” of high-ambition developing countries (HADCs). We argue that the HADC quasi-bloc is driving demands for stringent controls across the full life cycle of plastics, including on oil and gas feedstock, petrochemical processing and product design. It is also energizing calls for robust financing to support just transitions to low-plastic economies, while amplifying the demands of Indigenous peoples and civil society to address the injustices of plastic pollution. Notably, during treaty talks in Busan in 2024 and Geneva in 2025, the HADC quasi-bloc stood firm against petrostates and industry interests seeking to weaken the treaty. HADCs share much in common, including histories of subjugation and disproportionate vulnerability to plastic pollution. Yet the cohesion and power of the HADC quasi-bloc should not be overstated. This is not a formal coalition, but rather an ad hoc, fluid grouping of states with shared interests and concerns. Looking ahead, the HADC quasi-bloc, alongside high-ambition states in the Global North, appears to have enough power to block a weak treaty, but achieving strong obligations presents a far greater political challenge.
The Derbyshire Peak District in central England was one of the largest lead-producing regions in medieval Europe, yet the early history of production is obscure. Here, the authors use tooth-enamel-based lead concentrations accumulated in childhood in three cemeteries, linked to radiocarbon dates, to identify the development of post-Roman lead smelting from the mid-seventh century, with large-scale production and contamination around key mines, including Castleton, by the mid-eighth century AD. Intra- and inter-site comparisons of lead concentrations hint at the social dynamics of producer communities that may provide a benchmark for identifying lead- and silver-producing communities in medieval Europe more widely.
International law and policy addressing the management of chemicals and wastes have undergone enormous change between the Trail Smelter arbitration in 1941 and the 2022 decision of the UN Environment Assembly to negotiate a global treaty on plastics in line with a circular economy approach. The link between the two may not be immediately evident. This chapter attempts to shed light on it by reviewing and analysing the developments that took place in the intervening 81 years but, more specifically, between the historic Stockholm Conference in 1972 and the UN International Meeting Stockholm+50 in 2022. Following an overview of the relevant developments, it discusses the different ‘lenses’ through which chemicals and waste management have been viewed over the past five decades, which has influenced policy approaches. It concludes with an outlook towards the future, proposing ways of building a comprehensive international regime for the management of chemicals and wastes, still elusive in 2022.
This chapter concerns the law of the sea, tracing its historical development. The various parts of the seas are discussed, commencing with internal waters and the territorial sea and proceeding through the contiguous zone, the exclusive economic zone and the continental shelf. The extent of these zones and the identification of the relevant baselines are analysed, together with the notions of bays and islands, archipelagic states and the juridical nature of the respective zones. The rights of innocent passage and transit passage are discussed, followed by an examination of international straits. The important question of maritime delimitation of the various zones as between adjacent or opposite states is then examined, and the relevant principles as revealed in case law are analysed, including the situation as to delimitation beyond the 200-mile zones. The chapter then deals with the legal regime over the high seas, with jurisdictional issues being noted with the principle of flag state exclusivity and the exceptions thereto. The legal position as to the international seabed is then discussed with the International Seabed Authority and its organs are noted. The chapter concludes with an examination of dispute settlement mechanisms, especially the International Tribunal for the Law of the Sea.
Microplastics are widespread in aquatic environments and support surface-associated microbial communities. Although antimicrobial resistance in the plastisphere has been reported, the organization of resistance genes across plasmid types and mobility categories on microplastic surfaces remains incompletely characterized. In this study, we analyzed published microplastic biofilm metagenomes to examine microbial community structure, plasmid replicon diversity, predicted mobility, and antimicrobial resistance genes (ARG) distributions across microplastics from various global locations. Phylum-level taxonomic profiles varied by geography, but most plastisphere communities were dominated by Pseudomonadota. Core microbiome analysis revealed several genera within the Pseudomonadota (Paracoccus, Pseudomonas, Sphingomonas, Sulfitobacter, Vibrio, Mesorhizobium, Rhizobium, Bradyrhizobium, Roseovarius, and Hyphomonas) as members of the plastisphere core. Plasmid reconstruction revealed differences in predicted mobility profiles, with conjugative plasmids frequently identified in the polyethylene, polypropylene, and polyvinyl chloride samples. A co-occurrence analysis of plasmid mobility, replicons, and ARG showed that conjugative plasmids connected a broader range of replicons to multiple ARG classes than mobilizable or non-mobilizable plasmids. IncFIB and IncFII replicons were prominent with high ARG co-occurrence. Additionally, several less-characterized rep_cluster replicons were detected across microplastic types, indicating diverse and understudied plasmid backbones within plastisphere communities, underscoring the importance of considering plasmid context when evaluating plastisphere resistomes.
Conflict activities produce a complex array of environmental vectors of violence. Environmental violence is excess human-produced pollution that directly harms human health. In conflict, most often all pollution produced is in excess. Beyond the reduction in environmental quality and ecosystem services from degradation, the environment as a vector of violence directly assaults human health, often with impacts lasting well beyond the end of a conflict. This chapter focuses on environmental violence from conflict and highlights the complex and myriad ways in which conflict activities, materials, and damages can directly and indirectly harm human health.
The environment is almost always a victim in conflict. Conflict activities generally reduce environmental quality, resulting in a loss of ecosystem services that can be cultivated. The environment as degraded covers the range of pathways of environmental degradation from conflict activities, the implications for economic outcomes, and the environmental remediation needed to restore ecosystem functioning.
This chapter argues that the discussion of pollution in Victorian environmental writing was often cross-wired with an oppressive and dehumanizing moral rhetoric. The confusion of the moral and material valences of words like “pollution,” “impurity,” “contamination,” and “filth” meant that, in practice, the very persons and communities that were suffering the most at the hands of extractive capitalism were imagined to be the cause of environmental breakdown, rather than its most grievously suffering casualties. In this way, the profound human cost of industrialism and the profit logic could be obscured under a victim-blaming rhetoric of social respectability, sexual purity, and moral righteousness. Drawing on key passages by Henry Mayhew, Charles Dickens, Friedrich Engels, John Ruskin, Robert Browning, and Arthur Conan Doyle, the chapter shows some of the ways in which this troubling conflation of the moral and material was both critiqued and reinforced in the literature of the period.
This chapter looks at nineteenth-century visual arts with an ecological eye. The first section considers distance: the air, haze, clouds, and atmosphere in a painting. Next, closely observed detail in images, often influenced by John Ruskin’s beliefs, is related to the importance of close attentiveness, as well as to the global networks in the study and transport of plants. It then considers the use of visual material in publicizing environmental harms and in bringing home their emotional impact, as well as considering the long-term, as yet invisible effects of climate change on landscapes. Finally, it looks at the role of visual art in providing aesthetic escapism, whatever the realities of pollution and urbanization, as with James McNeill Whistler’s misty Thames views, or with nostalgic pastoral. All sections ask what environmental futures these images contain. The chapter highlights four images: John Constable’s View on the Stour Near Dedham (1823); Albert Goodwin’s A Sunset in the Manufacturing Districts (1884); Henry Warren, The Black Country Near Bilston (1869); and George Vicat Cole, At Arundel, Sussex (1887).
Theatrical presentation encompasses diverging perspectives on water ecologies, ecological divisions and extremes of wet and dry in tropical and desert climates. While twentieth-century drama points to how water sources in Australia have been divided up to restrict access through land proprietorship, polarising attitudes and racial injustice, innovative twenty-first century performance emphasises the interconnectedness of water flows, seepage and below ground storage. An appreciation of water flow is particularly evident in First Nations performance, which includes the influential work of Bangarra Dance Theatre. Performance explores values and practices that resist the way water is polluted and detrimentally reconfigured in binary divisions to restrict access and divert flows and highlights the need for water availability for all species in a climate change era. Australian theatrical performance points to emotional feelings and values that protect and preserve water and its river flows even as human impact on the climate means its patterns are no longer predictable.
Despite the neoliberal wave solidarity capitalism has remained important in Europe. Since it was impossible to tame capitalism globally, promoters of solidarity turned to the European Union, and strove to strengthen its ‘flanking’ welfare state. The early 1990s brought a first peak of international awareness regarding environmental protection and interest in social Europe, but that was shattered by a neoliberal reaction from the mid-1990s to the mid-2010s. Since then, social and environmental policies have been on the rise again, only to be challenged by the Russo-Ukrainian War. Three expressions of solidarity will be examined. The first deals with the legal regulation of globalisation through social legislation and trade regulation. The second involves financial redistribution towards the neediest, with transfers to poor regions (cohesion policy), and later with specific measures during the Covid-19 crisis (2020–21). The third addresses the rising importance of environmental regulation in general (air and water pollution, biodiversity, etc.), especially with regard to climate change (Kyoto Protocol, 2015 Paris Agreement), despite the lobbying of the ‘Merchants of Doubts’.
Ocean plastic pollution is a global issue, but many small island states lack relevant research studies and data. Microplastics are a major concern due to their persistence, entry into food chains and potential to transfer pollutants. Fish gastrointestinal tracts are easy to sample and provide a useful indicator of pollution levels. In 2024, we sampled 201 reef fish spanning 44 species from Funafuti Atoll, Tuvalu, to provide the first baseline microplastic data from this island nation. In total, 75 individuals (37.3%) contained microplastics. The mean occurrence was 0.72 ± 1.16 (mean ± SD) particles per fish, with a maximum of 5 particles per fish found in individuals of four species: Aphareus rutilans, Mulloidichthys flavolineatus, Mulloidichthys vanicolensis and Sargocentron spiniferum. When focusing analyses on seven species with 10 or more individual samples, generalized linear models found no significant differences among species, but revealed fish had significantly more microplastics close to the most populous islet Fongafale (0.95 ± 1.26 particles per individual), compared to rural islets Papaelise and Funafala (0.28 ± 0.77 particles per individual). Fibers were the most common microplastic, and polypropylene was the dominant polymer. This study confirms microplastic presence within the gastrointestinal tracts of key food fish from Funafuti lagoon, emphasizing the need for further research.
This manifesto argues that education is crucial to equipping people with the knowledge and skills, confidence and optimism to navigate the challenges of the twenty-first century. Human-induced environmental change – including climate breakdown; species extinction; pollution of the air, soil, freshwater and oceans; and resource depletion – is destroying the very systems that humans need for life. When these effects are coupled with a set of global economic constraints that prioritise unsustainable consumption, and interact with underlying social inequalities, the challenges we face are severe. The manifesto stresses the importance of fostering values-based education that promotes active citizenship, creativity, resilience, knowledge, compassion, systems thinking and local action with global impact.
Critical CHD often requires surgical intervention or results in infant mortality. We aimed to determine the association between critical CHD categories and exposure levels to pollutants.
Methods:
A retrospective study of n = 1484 infants who underwent complex cardiac surgery in early infancy from 1996 to 2021. The association between critical CHD categories (compared to a reference category with chromosomal abnormality) and exposure levels during early pregnancy to nitrogen dioxide, ozone, fine particulate matter (<2.5 micrometers diameter), and air quality from smoke was determined. Spatial heterogeneity was accounted for using geographically weighted multinomial logistic regression.
Results:
For fine particulate matter exposure, 0.34% of locations displayed statistically significant negative associations with critical CHD categories, clustered in Saskatchewan and Manitoba. These regions exhibited small spatial extents. For ozone exposure, 15.1% of locations exhibited statistically significant negative associations with critical CHD categories, with the majority originating from Alberta and a smaller fraction in Saskatchewan. Differences in significant associations with locations were observed before and after spatial adjustment. Air quality from smoke and nitrogen dioxide exposure demonstrated no statistically significant associations with critical CHD categories.
Conclusion:
Differences before and after geographic spatial adjustment underscored the importance of accounting for spatial heterogeneity to uncover patterns of association between environmental pollutants and critical CHD categories. The negative associations likely reflected pollution acting as a second hit to markedly increase the risk for critical CHD in those with genetic predisposition.
We describe the main insights from the papers included in this special issue, Challenges for the Development of Latin America in the Anthropocene: Current Research in Environmental Economics. The contributions are organized around three themes: the economic and welfare impacts of temperature variability, the role of institutions and user rights in shaping environmental governance and the effectiveness of regulatory instruments for managing ambient and atmospheric pollution. Together, these papers show that environmental outcomes in Latin America are deeply shaped by institutional capacity, governance quality and social inequality. By combining rigorous empirical analysis with attention to local contexts, they demonstrate how environmental economics can inform policy responses to the triple planetary crisis of climate change, biodiversity loss and pollution.
Kerri Woods surveys how, when it comes to the environment, the anthropocentrism of most of the history of human rights politics meant that its incorporation of claims on behalf of nature and those most affected by its degradation have waited a long time. Nonetheless, in recent decades they have exploded. At stake is not just the recognition of who in particular among human beings environmental degradation hurts, or recognition of the moral significance of future generations, but potentially turning rights language into a tool for non-human protection as an intrinsic good, just as Davies suggests when it comes to artificial intelligence. At the same time, Woods shows, the intersection of environmental concern and rights history opens up new quandaries about assigning responsibility for harm and regulating supraterritorially.