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The briefing identifies three primary shortcomings in the ICES scientific advice used by the EU and UK: a lack of focus on rebuilding stocks above sustainable levels (BMSY), insufficient precaution to prevent stocks from falling below biological limits (Blim), and a failure to integrate ecosystem health objectives such as food web integrity. It calls for a formal roadmap to address these flaws and recommends that fishery managers apply additional precaution by setting catch levels below the ICES 'headline' advice until recovery-focused and ecosystem-based advice is available.

The document outlines the global effort to create a legally binding treaty to end plastic pollution. It details the environmental and health risks of plastics, the history of the UN-led INC process, and the contentious treaty elements currently under debate, such as production caps and chemicals of concern. It also identifies the divergent positions of major plastic producers, high-ambition coalitions, and developing nations, while suggesting synergies with existing international conventions.

The document examines the systemic failures of carbon offsetting, highlighting that most credits—particularly those for forestry and renewable energy—lack additionality and environmental integrity. It argues that offsetting often leads to an overall increase in emissions by delaying necessary mitigation and allowing continued investment in high-emitting technologies. The briefing concludes that carbon avoidance and reduction offsets have no place in ambitious climate policies, recommending that priority be given to direct emissions cuts and non-market-based climate finance.

This policy brief argues that the current reliance on a single 100-year metric for greenhouse gas emissions obscures the distinct warming impacts of methane and carbon dioxide. The author advocates for a "multi-basket" approach with separate targets and dual metrics to address both short-term and long-term climate risks, asserting that simultaneous mitigation of both pollutants is essential to meet global temperature targets and reduce climate overshoot.

The document argues that relying on soil carbon sequestration to offset livestock emissions is risky due to finite storage capacity, the reversibility of carbon storage, and the significant warming potential of methane and nitrous oxide, which can outweigh sequestration gains.

The document outlines a synthesis of key scientific reports published between 2022 and 2023 to provide actionable guidance for the 2030 Agenda. It argues that current progress on the SDGs is languishing, with only about 10% of goals seeing significant progress, and calls for a course correction based on systemic, integrated, and science-based decision-making. The brief organizes its recommendations into ten thematic areas, emphasizing the need to move beyond GDP as a measure of prosperity, realign global financial systems to support low- and middle-income countries, and strengthen multilateral accountability.

The policy brief counters claims by some UN Security Council members that there is insufficient scientific evidence linking climate change to security risks. Drawing on the IPCC Sixth Assessment Report (AR6), the authors demonstrate that climate hazards contribute to conflict risk and that existing conflict increases vulnerability to climate change. While the current average effect of climate on conflict is modest, the brief asserts that this influence will grow with higher global warming levels. It further explains that misinterpretations of the science often stem from the indirect, context-dependent nature of these links and the condensed wording of high-level IPCC summaries compared to detailed technical chapters.

The document argues that the PMRA's 2017 glyphosate re-evaluation is outdated and flawed, relying heavily on industry-funded studies and US EPA analysis that has since been criticized by US courts. The authors present new evidence linking glyphosate to microbiome disruption, various cancers (including non-Hodgkin's lymphoma), neurodegenerative disorders, and reproductive toxicity. They also highlight environmental risks to pollinators, freshwater ecosystems, and the contribution of phosphorus loading in agricultural landscapes. The coalition demands that the PMRA apply a 'reasonable certainty that no harm will occur' standard before granting any renewals.

Earthjustice and a coalition of environmental and health organizations petitioned the EPA to revoke PMN exemptions for approximately 600 PFAS. The petitioners argue that the weight of scientific evidence proves PFAS pose unreasonable risks to human health and the environment, including to susceptible subpopulations, thereby failing the legal standard for exemptions under the Toxic Substances Control Act (TSCA). They highlight that current LVE and LoREX thresholds allow contamination levels far exceeding safe drinking water health advisories and that the EPA's voluntary stewardship program has a withdrawal rate of less than 3 percent.

The report details a two-day conference in Jamaica focused on Solar Radiation Modification (SRM). It covers the scientific basis of SRM, including Stratospheric Aerosol Injection (SAI) and Marine Cloud Brightening (MCB), the risks of 'termination shock,' and the necessity of a 'risk-risk' framework to compare SRM dangers against those of unchecked global warming. The proceedings highlight a significant gap in research and funding for the Global South, the specific vulnerabilities of Small Island Developing States like Jamaica, and the current state of US policy and governance frameworks for solar geoengineering research.

The petition argues that dams and reservoirs are significant sources of carbon dioxide, methane, and nitrous oxide, yet are currently excluded from the EPA's Greenhouse Gas Reporting Program (GHGRP). It highlights scientific evidence showing that some U.S. facilities, such as Lake Mead and Kentucky Lake, emit millions of metric tons of CO2e annually, sometimes exceeding emissions from fossil-fuel power plants of similar capacity. The petitioners contend that the current lack of reporting leads federal agencies, states, and utilities to incorrectly assume hydropower is a zero-carbon energy source, which may result in ill-informed climate policies and hinder the U.S. from achieving the Global Methane Pledge. The document identifies seventeen distinct emission sources within reservoir systems and urges the EPA to expand the GHGRP to include these facilities to improve data transparency and inform the transition to a truly clean electric sector.

The report highlights a critical failure by major livestock-producing nations and corporations to address methane emissions, despite the gas's high potency and short atmospheric lifespan. It finds that most assessed countries lack absolute methane reduction targets and that the largest meat and dairy companies fail to report methane emissions separately or implement concrete abatement plans. The document advocates for a systemic transition toward plant-rich diets and the implementation of both technical and behavioral mitigation measures to meet Paris Agreement goals.

The report argues that the UK, the Netherlands, and Germany are in breach of the EU Habitats Directive by failing to implement effective management measures for the Dogger Bank SACs. It concludes that most bottom-contacting fishing gears cause significant harm to the H1110 sandbank habitat and should be halted to restore the site's integrity.

The document provides formal comments on the EPA's External Review Draft of the Policy Assessment for the review of PM2.5 NAAQS. It asserts that the EPA is legally obligated to set standards based solely on health and welfare effects, without considering cost or feasibility, and must protect vulnerable subpopulations. The authors criticize the EPA for disbanding the particulate matter review panel, following a flawed memorandum from former Administrator Pruitt that suggests combining science and policy assessments, and failing to issue a second draft of the Integrated Science Assessment (ISA). Finally, the document argues that current PM2.5 standards are insufficient, citing evidence of mortality risks at levels as low as 8 μg/m3, and recommends lowering the primary annual standard to 8-10 μg/m3 and the 24-hour standard to 25-30 μg/m3.

The document outlines the development of 'climate attribution' science, which allows researchers to quantify the role of human-caused climate change in extreme weather. It identifies that evidence is strongest for heat waves, coastal flooding, and extreme precipitation, while remaining less conclusive for tornadoes and thunderstorms. The text provides specific examples of US events, such as Hurricane Harvey and the February 2017 heat wave, where climate change significantly increased likelihood or intensity.

The briefing challenges the perception that burning trees for energy is carbon neutral, noting that wood combustion can emit more CO2 per unit of energy than fossil fuels and creates a 'carbon payback time' that can last decades or centuries. It warns that increasing the EU's renewable energy targets may drive higher demand for tree harvesting, including imports from the U.S. and Canada, which would release a pulse of CO2 into the atmosphere at a time when rapid emissions reductions are required to meet global temperature goals. The author recommends that the EU phase out subsidies for stemwood and stumps and instead invest in wind, solar, and energy efficiency.

Canada has ratified the Minamata Convention on Mercury, committing to reduce transboundary pollution and manage domestic emissions. While atmospheric emissions have decreased, Canada remains susceptible to long-range transport, with over 95% of anthropogenic mercury deposition originating outside its borders. The document highlights the role of the IISD-Experimental Lake Area (IISD-ELA) in researching mercury bioaccumulation, particularly in reservoirs, and identifies critical gaps in knowledge regarding climate change impacts and non-point source emissions. Future priorities include the safe disposal of smelter waste, remediation of contaminated sites like Grassy Narrows and Wabaseemong First Nations, and improved land-use management to address methylmercury release from flooded areas.

The document discusses the increasing frequency and magnitude of extreme heat events in India, highlighting the role of climate attribution science in identifying the human-induced causes of these events. It emphasizes that such science helps decision-makers create targeted heat action plans that account for vulnerability, exposure, and local factors like the urban heat island effect, air pollution, and humidity. The brief notes that while aerosols can temporarily lower peak temperatures, their reduction through clean energy policies may increase heat wave intensity. It advocates for coordinated government responses, early warning systems, and capacity building to protect marginalized populations, such as slum dwellers and outdoor workers, who are most at risk.

The document analyzes the tension between the risk-management approach of the UNFCCC and the justice-based demands for compensation regarding climate-induced loss and damage. It evaluates four scientific traits—attributability, irreversibility, unavoidability, and intolerability—concluding that while science can inform risk management, the determination of liability and compensation remains a political and value-based challenge.

The document argues that the current 75 ppb ozone standard is insufficient to protect public health, particularly for sensitive populations like children and asthmatics. It advocates for a 60 ppb primary standard based on scientific evidence of lung function decrements and inflammation at that level. It also calls for a separate secondary standard of 7 ppm-hrs using the W126 metric to protect vegetation and ecosystems, specifically in Class I areas.