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The guide provides a structured approach based on the XLRM framework to assess investments in water supply systems. It emphasizes comparing 'environmental additional investments' (IAA) against traditional infrastructure and efficiency measures. Using two Colombian case studies (Río Chinchiná and Río Chicamocha), the document demonstrates how nature-based solutions like ecosystem restoration can improve water regulation and increase low-flow (Q95) availability, thereby reducing the gap between water supply and demand. It also analyzes the Colombian regulatory framework, specifically Resolution CRA 907 of 2019, which allows certain environmental costs to be recovered through tariffs.

Türkiye's total solar capacity reached 12.2 GW by early 2024, surpassing wind capacity once 510 MW of secondary solar capacity from hybrid power plants is included. These hybrid plants, which combine a primary and secondary energy source at one location, are predominantly wind-solar combinations. While 1.9 GW of hybrid solar capacity is currently in the pipeline, the report highlights a lack of transparent capacity planning and the untapped potential of floating solar on hydroelectric reservoirs, which could provide up to 17 GW of capacity across five major plants.

The document explores the role of Black Soldier Fly (BSF) larvae in transitioning South Africa from a linear to a circular economy by converting organic waste into high-value protein meal, oil, and frass. It identifies significant opportunities in waste management, livestock and pet food ingredients, and soil security, while highlighting regulatory barriers and the need for updated legislation to support the sector's growth.

The report argues that Canada must add over 10 GW of zero-emission capacity annually until 2050 to reach its climate goals. To achieve this, it proposes a 'fast track' permitting process for modest projects using proven technologies, contrasting with an existing track for large-scale or experimental projects. The proposed framework focuses on three pillars: technology (proven, low impact), location (objective, binary criteria), and timeline (fixed limits for each project phase). It emphasizes the central role of municipal and Indigenous governments in granting approvals to ensure social acceptability and the protection of key ecological elements. The document also analyzes the constitutional competencies of federal, provincial, territorial, municipal, and Indigenous authorities to implement these reforms.

The document examines the dual nature of social media as a tool that both supports and undermines democratic processes. It highlights how platforms enable protest movements like 'Black Lives Matter' and 'Rhodes Must Fall' to shift political agendas, while simultaneously allowing negative actors to deploy misinformation and surveillance. The author argues that because these platforms are privately owned and monetise interaction, they create a complex regulatory ecosystem requiring a holistic response rather than a binary view of the technology as purely good or bad.

The REIPPPP has successfully added 6,308.68 MW of renewable electricity to South Africa's grid and supported local industry, but it has been hindered by policy uncertainty, grid capacity bottlenecks, and a six-year gap between Bid Windows 4 and 5. The document argues that for the programme to reach the Integrated Resource Plan 2019 goals for solar PV and wind by 2030, South Africa must unbundle Eskom, establish an Independent Systems Market Operator (ISMO), and optimise transmission infrastructure. It recommends streamlining bid windows, enhancing regulatory transparency, and leveraging the South African Renewable Energy Masterplan (SAREM) to promote strategic localisation and job creation.

The EU chemicals sector faces a critical investment window until 2030, requiring over EUR1tn by 2050 to achieve net zero. The document argues that decarbonisation must address scope 3 emissions—which account for 60% to 80% of total emissions—through demand reduction, circularity, and alternative feedstocks. Key policy recommendations include expanding the Carbon Border Adjustment Mechanism (CBAM) to include polymers and organic chemicals, implementing Carbon Contracts for Difference (CCfDs) for low-carbon hydrogen, and strengthening the EU Taxonomy to better incentivise low-carbon basic chemicals production.

The Canadian Climate Institute and Clean Energy Canada propose adjustments to the Clean Electricity Regulations (CER) to ensure they are achievable and cost-effective. Key recommendations include raising the performance standard to 60 tonnes of CO2 per GWh, increasing the capacity factor for peaker plants to 15%, and introducing interim standards for facilities commissioned after 2025. To complement the CER, the authors argue for reforming the Output-based Pricing System (OBPS) to apply full carbon pricing to the electricity sector, federally procuring negative emissions via DAC-CCS and BECCS to offset residual emissions, and increasing support for demand-side management and distributed energy resources.

The report highlights a critical gap in US public health policy: the lack of comprehensive, science-based indoor air quality (IAQ) guidelines. While the US regulates outdoor air via the Clean Air Act, indoor environments—where people spend approximately 90% of their time—remain largely unregulated. The document details how pollutants like nitrogen dioxide from gas stoves and wildfire smoke exacerbate health risks, particularly for vulnerable populations. It reviews existing international models from the WHO and Health Canada, and limited US efforts in states like California and Texas. RMI recommends that the EPA use its authority under the Superfund Amendments and Reauthorization Act (SARA) to develop federal guidelines, which could then inform building codes, product safety standards, and electrification efforts to reduce combustion pollution.

The People’s Collective for Environmental Justice, Communities for Better Environment, East Yard Communities for Environmental Justice, and Sierra Club argue that the South Coast Air Quality Management District (SCAQMD) has violated the Clean Air Act (CAA) by failing to penalize major stationary sources for ozone precursor emissions. The petitioners claim that Rule 317, intended as an alternative fee program for the 1979 one-hour ozone standard, is a "paper exercise" that allows polluters to avoid fees through unrelated credits. Furthermore, they assert that SCAQMD has completely failed to adopt required fee programs for the 1997 and 2008 eight-hour ozone standards. The document emphasizes that these failures disproportionately harm low-income communities and communities of color in the South Coast Air Basin, which is described as having the worst ozone pollution in the United States.

The document argues that British Columbia's proposed methane regulations lag behind international best practices, particularly regarding timelines for existing facilities and the lack of a policy for compressor engine exhaust. The coalition recommends accelerating the target for near-zero methane emissions to 2030, implementing stricter standards for pneumatic devices, tanks, and compressor seals by 2025, and adopting a monthly instrument-based leak detection and repair (LDAR) regime.

The briefing argues that insufficient transmission capacity is a major bottleneck for US decarbonization, with new capacity seeking interconnection consisting of 95 percent zero-carbon resources in 2022. It identifies grid-enhancing technologies (GETs) as cost-effective, rapid-deployment solutions that optimize existing transmission, but notes that utility adoption is hindered by risk aversion and regulatory incentives that reward capital expenditures over operational efficiencies. To overcome this, the document outlines four strategies for Public Utility Commissions (PUCs): building knowledge through investigative proceedings, mandating the consideration of GETs in planning processes, implementing performance incentive mechanisms or totex ratemaking, and engaging in Federal Energy Regulatory Commission (FERC) proceedings.

The report assesses the progress of the Brazilian Forest Code's implementation in 2022, highlighting a heterogeneous landscape where registration (CAR) is advanced but analysis and regularization (PRA) remain significant bottlenecks. While states like São Paulo and Espírito Santo show leadership in analysis, only 2% of national registries have completed analysis. The document identifies critical gaps in the registration of traditional territories and the slow adoption of the PRA, while noting that some states are integrating CAR data with deforestation alerts to enforce compliance.

The document defines greenwashing in the financial sector as false or misleading representations of environmental impact and warns that it can misallocate capital and undermine the Paris Agreement. It outlines five categories of evolving regulation—disclosure, labelling, ratings, taxonomies, and net zero integrity—and classifies enforcement actions into brand, product, financing, and reporting greenwashing. To mitigate risk, the guide proposes 'five pillars' of guarding against greenwashing: screening claims, ensuring transparency, aligning internal actions with public image, monitoring regulatory changes, and adhering to fiduciary duties.

The document argues that current British Columbia regulations are insufficient to meet 2025 methane reduction targets, as emissions are often underestimated and compliance is low. It recommends implementing more stringent standards by 2025, including the elimination of routine venting and flaring, lower tank emission limits, and monthly instrument-based leak detection and repair (LDAR). The coalition also urges the province to accelerate its target for near-zero methane emissions from 2035 to 2030, aligning with the Oil and Gas Climate Initiative (OGCI). Specific technical recommendations cover the adoption of zero-bleed pneumatic equipment, tighter standards for reciprocating and centrifugal compressors, and the implementation of a 'super emitter' response program based on third-party remote monitoring.

The report analyzes the Brazilian sustainable securitization market, highlighting the dominance of green labels and the potential for asset-backed securities (ABS) to fund small-scale sustainable projects in agriculture and energy.

The report analyzes Brazil's sustainable securitisation market, highlighting the role of Agribusiness Receivables Certificates (CRA) and Real Estate Receivables Certificates (CRI) in funding green and social projects. It identifies a significant opportunity to use ABS to aggregate small-scale sustainable projects, particularly in agriculture and renewable energy, to attract institutional capital.

The document outlines the distinctions between 'most harmful substances', 'substances of very high concern', 'substances of concern', and 'hazardous substances' under EU regulations, while providing estimates on the scale of the global and EU chemical markets.

The 2023 report by Climate Policy Initiative provides a detailed 'radiography' of how Brazilian states are implementing the Forest Code. It highlights a significant jump in progress during 2023, with states like Minas Gerais, Alagoas, and Pará making substantial gains in CAR analysis and PRA implementation. However, the analysis of CAR data remains the primary bottleneck, with only 2.7% of national registries fully concluded. The report details the adoption of automated analysis tools, the challenges of communicating with landowners for data rectification, and the legal complexities surrounding Legal Reserve compensation and the 'ecological identity' criterion. It also notes the transition of CAR management to the Ministry of Management and Innovation in Public Services (MGI) and the ongoing struggle to cancel irregular registries overlapping indigenous lands and conservation units.

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.