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The document outlines Mexico's waste sector emissions, the institutional framework for waste management, and the specific challenges and opportunities for methane mitigation.

The document outlines Mexico's waste sector methane emissions, the existing institutional and legal framework for waste management, and the challenges and opportunities for achieving GHG mitigation targets.

The document analyzes the cassava value web in Colombia, identifying its current uses in food, animal feed, and industrial materials, while highlighting potential for expansion into bioplastics and bioethanol. It maps commercial, financial, and knowledge linkages across four main production nuclei: Cauca, the Atlantic Coast, Orinoquía, and Amazonía. The paper argues that while Colombia is the third largest producer in Latin America, low productivity and limited technification hinder its competitiveness. It recommends developing inclusive supply chains, promoting sustainable agricultural practices to protect biodiversity, and increasing incentives for private sector innovation to transition toward a sustainable bioeconomy.

WASH-Flows is a Microsoft Excel-based tool developed under the Bolivia WATCH Program to bridge the gap between household-level WASH data and watershed-scale planning. It transforms qualitative household information into quantitative data to assess service vulnerability, estimate environmental contamination loads, and provide water demand and wastewater flow data for water resources management software. While developed for Bolivia and currently applied in the Tupiza, Pampa Huari, and Choqueyapu-La Paz watersheds, the tool is intended for use in low- and middle-income countries across rural and peri-urban settings.

WASH-Flows is a Microsoft Excel-based tool developed under the Bolivia WATCH Program to bridge the gap between household-level WASH data and community-scale watershed planning. It transforms qualitative information into quantitative data to assess service vulnerability, estimate pollution loads, and calculate water demand and wastewater flows. While currently in beta and applied in three Bolivian watersheds, the tool aims to support local governments and planners in rural and peri-urban environments to prioritize interventions and align with SDG 6 targets.

The report argues that scaling green hydrogen for a 1.5°C-aligned future will not severely impact global freshwater supplies, as its water consumption is comparable to or lower than fossil-fuel-based hydrogen and other energy production methods. It estimates that meeting 2050 hydrogen demand targets would require only 0.33% of current global freshwater. To mitigate local water stress, the document recommends using non-freshwater sources like desalinated seawater or treated wastewater, intentional project siting, and revising water pricing structures to incentivize efficiency.

The report identifies municipal solid waste and wastewater as significant contributors to anthropogenic methane emissions, accounting for approximately 12% and 8% respectively. It details how poor waste management leads to health crises, including respiratory diseases from landfill fires and waterborne illnesses from untreated sewage. The document proposes a 'waste hierarchy' approach—prioritizing reduction and reuse—and technical solutions such as anaerobic digestion and landfill gas (LFG) capture. Case studies from Nigeria, Indonesia, India, and the Philippines illustrate the potential for these interventions to reduce premature deaths, create economic value through biogas, and improve sanitation in the Global South.

The report identifies that the waste sector, comprising municipal solid waste and wastewater, contributes one fifth of global anthropogenic methane emissions. It argues that improving waste management—through organic waste diversion, landfill gas capture, and upgraded sanitation—can significantly reduce tropospheric ozone and prevent millions of premature deaths. The document provides a framework for health professionals to advocate for these changes and highlights case studies from Nigeria, Indonesia, India, and the Philippines to demonstrate the feasibility of methane mitigation and its associated health and economic benefits.

The AC-CReWS project aims to enhance climate resilience on Ambergris Caye, Belize, by upgrading water and wastewater infrastructure and governance. The project focuses on transitioning to low-carbon systems through the installation of a 3 MW grid-tied PV system, upgrading sewage treatment to tertiary levels for reclaimed water reuse, and implementing SCADA for automated monitoring and leak detection. With a total indicative cost of USD 49.893 million, the project targets 40,000 direct beneficiaries and expects to mitigate 148,140 tCO2eq over a 30-year lifespan. It also proposes a Revolving Adaptation and Mitigation Fund Facility (RAMFF) to sustain small-scale climate initiatives.

The STeP Fellowship Program aims to build human and institutional capacities in IAI member states to provide expert scientific advice for public policy on global change. Between 2022 and 2023, the program expanded its cohort to 64 fellows from 13 countries, providing training in science diplomacy, communication, and leadership. Key achievements include the graduation of the first cohort of 17 alumni in February 2023 and the development of science diplomacy projects covering topics such as the lithium supply chain, circular economy, and climate justice. The program is currently seeking financial support from the Gordon and Betty Moore Foundation.

The executive summary advocates for a shift from traditional 'grey' water infrastructure to natural infrastructure in the Canadian Prairies to combat climate vulnerabilities and infrastructure deterioration. It highlights the region's significant loss of wetlands and the need for policy and funding reforms to support nature-based solutions.

The analysis finds that Rwanda's economy is highly vulnerable to water supply fluctuations and a heavy reliance on run-of-river hydropower. While the 'Vision 2050' growth trajectory would increase water demand by 1140%, the 'Water Resilient Vision 2050' (WRes2050) scenario suggests that combining a reduction in hydropower dependence (from 40% to 20%) with diversified supply- and demand-side interventions can maintain GDP growth while reducing water-related losses. Key recommendations include tripling water storage from 100 to 300 MCM, improving irrigation efficiency, and establishing Payments for Ecosystem Services (PES).

The Stockholm Environment Institute has developed WASH Flows, a Microsoft Excel-based tool that links household-level WASH data with watershed-scale modelling, such as WEAP. By bridging the gap between WASH services and Integrated Water Resource Management (IWRM), the tool allows users to estimate service levels, identify vulnerable communities, and model the impact of interventions on water balance and quality. A case study in the Tupiza watershed in Bolivia demonstrated the tool's ability to establish a service baseline—revealing significant gaps in safely managed water (25%) and sanitation (4%)—and to evaluate the effectiveness of proposed drinking water and decentralized sanitation systems in increasing drought resilience.

The report introduces a technology-neutral sustainability assessment method based on five pillars: social, environmental, economic, health and hygiene, and technical/institutional sustainability. Applying this to Montero, Bolivia, the study compares four systems: conventional gravity-fed sewers (System 1), condominial sewers (System 2), septic tanks with soak pits (System 3), and urine-diverting dry toilets (UDDTs) (System 4). Findings indicate that while conventional systems have high social acceptability, they are the least affordable and most vulnerable to water scarcity and flooding. System 4 (UDDTs) performs best in health, water use, and climate resilience. Optimization—such as adding inlet screens, using personal protection equipment (PPE), and implementing scheduled emptying—generally improves health and environmental outcomes but increases technical complexity and reduces economic sustainability. The report argues for a city-wide inclusive sanitation approach using a mix of these systems to balance trade-offs between cost, health, and environmental protection.

The report finds that global methane abatement finance reached USD 13.7 billion in 2021/22, yet remains far below the estimated annual need of USD 48 billion by 2030. While the AFOLU sector saw a 77% increase in funding, the fossil fuel sector—which has the highest mitigation potential—received less than 1% of tracked finance. Private sources provided 70% of total funding, primarily through debt and equity, while public finance declined by 10%. Geographically, East Asia and the Pacific, the U.S. and Canada, and Western Europe are the top recipients, leaving a significant support gap in Latin America and South Asia.

The 2023 Water Market Intelligence Report highlights a critical state of wastewater treatment works (WWTWs) in South Africa, with 39% requiring urgent intervention. It identifies three primary investment areas: the restoration of municipal infrastructure (estimated at R8.14 billion), the circular economy potential of sludge beneficiation, and the deployment of renewable energy and energy efficiency (EE) technologies to reduce high operational costs. The report notes significant funding gaps and municipal capacity constraints but points to regulatory drivers, such as the 2019 liquid waste landfill ban, as catalysts for private sector involvement.

The natural infrastructure sector in the Canadian Prairies contributed over CAD 4.1 billion to GDP and employed over 33,000 people directly in 2022. In Manitoba, the sector directly employed over 5,700 people and contributed over CAD 540 million to the provincial economy in 2022. Investment scenarios for Manitoba suggest that annual investments of CAD 10 million or CAD 25 million could increase direct jobs by 8% to 21% and direct GDP by 7% to 17%. Similar growth potentials are identified for Alberta and Saskatchewan, where natural infrastructure is viewed as a means to bridge water infrastructure gaps and increase resilience against floods, droughts, and wildfires.

The document highlights the economic value of natural infrastructure in the Canadian Prairies, noting that in 2022, the sector directly employed over 33,000 people and contributed over CAD 4.1 billion to the region's GDP. In Saskatchewan specifically, the sector directly employed over 5,800 people and contributed CAD 640 million to the provincial economy in 2022. The report argues that increased annual investments—such as CAD 10 million or CAD 25 million in Saskatchewan—could significantly boost direct jobs and GDP while addressing water infrastructure gaps and increasing resilience against climate impacts like floods, droughts, and wildfires.

The document highlights the economic contributions of natural infrastructure in Alberta, Saskatchewan, and Manitoba, noting that the sector provides jobs and GDP growth while increasing resilience to climate-related weather extremes. In Alberta specifically, the sector directly employed over 21,000 people and contributed CAD 2.9 billion to the provincial economy in 2022. The report argues that increased annual investments—such as CAD 20 million or CAD 50 million in Alberta—would further drive job creation and GDP while addressing water infrastructure gaps and buffering against floods, droughts, and wildfires.

The study evaluates alkaline dehydration, nitrification-distillation, and ion-exchange with struvite precipitation for nutrient recovery in Malmö, Sweden. It finds that these technologies support Sustainable Development Goals, particularly nitrogen recovery, and that concentrating over 60% of the city's urine significantly reduces nitrogen emissions to surface water. Additionally, recycling 15–30% of Malmö's urine could meet 50% of the municipality's fertiliser demand.