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The document provides technical and legal arguments to support the suspension of the Granja Porcícola Homun, a large-scale swine operation in the Yucatan Peninsula. It asserts that such 'mega-farms' pose severe risks to water quality, air quality, and public health, specifically through the spread of antibiotic-resistant bacteria. The authors argue that under the precautionary principle and international law, the burden of proof should shift to the state and operator to prove the absence of danger, rather than requiring affected citizens—including indigenous Maya children—to prove certain harm before preventative measures are taken.

The Union of Concerned Scientists argues that hypersonic weapons are an evolutionary rather than revolutionary technology, providing limited tactical or strategic advantages over existing ballistic missiles. The report claims that claims of superior speed, stealth, and evasiveness are not backed by technical evidence, and that the current arms race between the US, Russia, and China is driven by hype rather than military necessity. It recommends that the US government subject these programs to strict evidence-based scrutiny to avoid wasteful spending and global security risks.

The briefing proposes a federal low-carbon product standard for the U.S. cement and steel sectors to drive decarbonization. It suggests setting declining emissions intensity benchmarks and allowing the trading of emissions credits among producers and importers. For cement, the author recommends regulating the cement itself rather than concrete for administrative ease. For steel, the focus is placed on intermediate fabricated products. The document emphasizes that such a standard should include both direct and indirect emissions and be supported by price ceilings and floors to manage credit costs. Implementation via new legislation is preferred over the Clean Air Act to ensure coverage of imports and upstream emissions. Potential abatement technologies highlighted include fuel switching, carbon capture, use and storage (CCUS), energy efficiency, and hydrogen-based steel production.

The paper argues that a low-carbon product standard—a market-based regulation establishing emissions intensity benchmarks with tradable credits—can incentivize the U.S. steel industry to adopt abatement technologies. It recommends regulating finished steel products (sheets, plates, bars, beams, pipes, and tubes) at the point of first sale, covering Scope 1, Scope 2, and significant upstream Scope 3 emissions (coke, lime, and direct-reduced iron). To prevent carbon leakage and maintain competitiveness, the authors suggest applying the standard to all steel products sold or imported into the U.S., including indirect steel products above a certain value threshold. The paper emphasizes that while such a standard is a powerful tool, it must be complemented by R&D funding, government procurement, and other policies to achieve full decarbonization.

The document argues that wood forensic science—a suite of identification technologies—can reveal the true species and origin of timber, exposing the fraud and corruption that facilitate illegal logging. While these tools can support law enforcement and due diligence in consumer and producer countries, their effectiveness depends on political will, institutional capacity, and the expansion of global reference data sets.

Ember challenges the assumption that biomass is carbon neutral, noting that current practices may actually contribute to climate change. The organization argues that the scale of land required for energy crops to support BECCS would cause significant environmental and food security issues. Furthermore, Ember highlights the high public cost of subsidizing bioenergy, suggesting that funds would be more effectively spent on wind, solar, or forest restoration.

The report advocates for a paradigm shift in sanitation and wastewater management, moving from a 'waste disposal' model to a 'resource recovery' model. It details how the safe recovery of water, nutrients, organic matter, and energy from human excreta and wastewater can improve public health, enhance agricultural productivity, and mitigate climate change. The text provides a comprehensive framework for sustainable systems, covering technical design, health risk management, environmental protection, institutional governance, and financial models. It emphasizes that sustainability depends on adapting technologies to local geographic, social, and economic contexts rather than applying universal solutions. The report includes diverse global case studies—ranging from potable water reuse in Namibia to biogas production in China and fuel briquettes in Kenya—to demonstrate the practical viability of these systems.

The document argues that Colombia has the technical and economic capacity to phase out coal-fired power generation by leveraging its high hydroelectric capacity and expanding non-conventional renewable energy sources. It notes that most existing coal plants are obsolete, with an average age of 34 years, and that new coal projects are largely stalled due to financial and social opposition. The brief highlights a complementarity between hydroelectricity and renewables (solar and wind) that can ensure energy security during droughts, reducing the need for fossil fuel backups. It also warns that relying on natural gas as a transition fuel is risky due to limited national reserves, estimated to last only about eight years. The report recommends that the Colombian government lead the transition by abandoning coal generation and promoting a diversified, carbon-neutral electricity sector by 2050.

The document outlines a research project led by Öko-Institut and the Stockholm Environment Institute focused on the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA). It evaluates the environmental integrity of Emissions Unit Criteria (EUC), estimates the potential supply of offset credits, and examines mechanisms under the Paris Agreement to prevent double counting between CORSIA and nationally determined contributions (NDCs).

Ember argues that National Grid ESO's FES 2020 scenarios for achieving net-zero by 2050 are undermined by an over-reliance on BECCS to offset residual emissions. The briefing highlights that the required scale of BECCS would necessitate converting 1Mha of UK agricultural land to energy crops and potentially 200Mha globally, posing significant risks to biodiversity and food security. Ember contends that the assumption of 'instant' negative emissions is flawed and that relying on BECCS creates a moral hazard, potentially discouraging more ambitious decarbonisation efforts in difficult sectors like aviation and agriculture.

The report argues that the GCF's current SEAH policy is too broad in scope, creating impractical obligations for counterparties and exposing the Fund to undue legal and reputational risks. It recommends splitting the framework: maintaining a standalone internal policy for 'covered individuals' while integrating the prevention of sexual exploitation and abuse (SEA) into the existing Environmental and Social (ES) safeguarding framework for project-level activities. The assessment emphasizes the need for in-house subject-matter expertise, a survivor-centered approach, and the adoption of an intersectional lens and the 'ecological model' to better understand and mitigate risks to vulnerable groups.

The policy brief addresses the 2020 California blackouts, refuting claims that renewable energy caused the outages. It identifies climate-driven extreme heat and the failure of gas generators as contributing factors. The author argues that a diverse mix of resources, including battery storage and green hydrogen, is necessary to ensure 21st-century grid reliability.

The document argues that renewable energy (RE) is now a viable, low-cost alternative to grid and diesel power for mining operations, particularly through hybrid systems. While high initial capital expenditure and intermittency pose challenges, the long-term total cost of ownership is lower over a 20-year period. The paper highlights the role of energy storage in stabilizing supply and the potential for portable solar systems to support exploration. It also notes that the shift toward electric vehicles in mining will further drive RE demand. In South Africa, major mining companies are already seeking to self-generate solar power to reduce grid dependence.

The testimony argues that a diverse portfolio of zero-carbon energy sources, including nuclear, is essential for the U.S. to achieve net-zero emissions by 2050. While acknowledging challenges such as high costs and delays in recent projects, the author highlights the advantages of nuclear energy as a dispatchable, high-power-density source capable of producing carbon-free heat and hydrogen. The document specifically supports the Advanced Nuclear Infrastructure Act of 2020's goals of preserving existing plants and researching non-electric applications, but urges the removal of provisions that would further streamline environmental permitting, arguing that strong standards are necessary for public trust.

The document argues that offshore wind is a critical resource for achieving zero-emissions targets due to plummeting costs and high capacity factors. It highlights the transition from fixed subsidies to competitive procurement in Europe as a model for cost reduction and notes that floating turbines could unlock 80 percent of global offshore potential. For the U.S., it recommends establishing procurement targets, creating an interstate transmission backbone, and converting tax credits to direct payments to accelerate deployment.

The document examines the challenges South African municipalities face as residential rooftop solar PV adoption grows, specifically focusing on the loss of revenue used to cross-subsidize low-income households. It highlights a significant lack of system registration, with an estimated 75% of households failing to inform municipalities of their installations. The paper argues that appropriate tariff design and transparent communication are essential to balance the interests of prosumers and utilities. To support this, the authors introduce a simulation-based electricity decision-making tool developed by Stellenbosch University to help policymakers visualize the complex interactions between tariffs, consumer behavior, and grid stability.

The briefing highlights the role of Energy Management Information Systems (EMIS) in decarbonizing New York City's large buildings. It notes that while many buildings have basic monitoring, they lack the analytics to optimize energy use, particularly in tenant spaces. The document asserts that EMIS can lead to a median energy consumption reduction of 8% and is essential for meeting the requirements of Local Law 97, which mandates significant greenhouse gas emission reductions by 2050.

The document discusses the California Air Resources Board's (CARB) Advanced Clean Trucks regulation, which mandates that 50% of trucks in the state be zero-emission by 2035 and 100% by 2045. It suggests prioritizing battery electric vehicles (BEV) for short-haul and regional routes, while utilizing hydrogen fuel cell electric vehicles (HFCEV) for long-haul trucking due to range and fueling speed requirements. The author emphasizes that the transition requires massive infrastructure investment, specifically DC fast charging up to 1 MW, which can cost $100,000 per vehicle. The text advocates for collaboration between government, utilities, and industry, highlighting California's 'make ready' infrastructure support as a model for other states.

The report highlights a critical gap in Brazil's environmental monitoring: while primary forest loss is tracked via PRODES and DETER, secondary vegetation (regrowth in deforested areas) remains 'invisible' to official systems. This lack of data hinders the ability to verify reforestation goals and enforce the Forest Code. The authors argue that monitoring is technologically feasible and cost-effective, estimating a price tag of around US $500 thousand for implementation within a year. They recommend establishing clear classification criteria, developing complementary short-term (alert-based) and long-term (trend-based) systems, utilizing existing LANDSAT/OLI and CBERS/WFI satellite imagery, and implementing a dedicated communication strategy for policymakers.

The report highlights that while Brazil has successfully monitored primary forest loss, secondary vegetation (regeneration) remains 'invisible' to official systems like PRODES and DETER. It argues that monitoring this vegetation is technologically feasible and essential for meeting international reforestation goals and enforcing the Forest Code. The authors propose a dual-system approach—one for long-term measurement and one for short-term alerts—utilizing existing satellite imagery and an estimated annual budget of US$500,000.