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The Union of Concerned Scientists reports that the EPA's January 25, 2018, withdrawal of the "once in, always in" (OIAI) policy allows industrial facilities to be reclassified from "major sources" to "area sources" of hazardous air pollutants (HAPs). This reclassification removes the requirement for facilities to use Maximum Achievable Control Technology (MACT), which the authors estimate was used by 70 percent of major sources in 2014 to keep emissions at or below thresholds of 10 or 25 tons per year. The document warns that area sources are not regulated or inspected as stringently, potentially increasing emissions of toxic substances like chlorine, benzene, and styrene. The analysis identifies at least 21 states at risk of increased pollution, with specific high-risk clusters in Louisiana's "Cancer Alley," Houston, Chicago, and the New York-Newark urban area.

The document outlines projected climate impacts for Latin America and the Caribbean, including temperature increases of up to 4.5 °C, rising sea levels, and glacier loss. These changes are expected to disrupt water runoff, reduce agricultural and livestock yields, and threaten biodiversity, specifically coral reefs and the Amazon rainforest. The paper concludes that the region faces severe risks to human health, infrastructure, and livelihoods due to the potential for simultaneous and compounding impacts.

The report concludes that the combined operation of the proposed Thabametsi power plant with the existing Matimba and Medupi plants would cause SO2 concentrations to exceed South Africa's health-based National Ambient Air Quality Standards (NAAQS) at several receptor locations. While NOx and PM2.5 emissions from the plants alone might not exceed standards due to stack dilution, the report finds they will likely cause exceedances when added to existing baseline pollution from mobile sources and the Grootegeluk Mine. Additionally, the author argues that PM2.5 emissions from the proposed Thabametsi mine were significantly underestimated in previous reports by at least a factor of five, likely leading to significant impacts on locations to the south-west.

The AHM Project implemented an integrated model of biodiversity conservation and climate adaptation across 10 demonstration sites in Bhutan, India, the Kyrgyz Republic, Mongolia, Nepal, and Pakistan. Key achievements include bringing 1.4 million hectares of land under improved management, training 26,966 people in conservation and adaptation, and supporting the 12-nation Global Snow Leopard and Ecosystem Protection (GSLEP) Program. The project focused on reducing threats like poaching and pasture degradation while addressing climate-driven risks to water security and rural livelihoods through interventions such as water-smart irrigation, predator-proof corrals, and alternative income generation.

The document examines the impact of stopping new fossil fuel leases on U.S. federal lands and waters, estimating a reduction of 280 million tons of annual global CO2 emissions by 2030.

The document assesses the impact of underground mine workings on the shallow weathered and deep fractured Karoo aquifers within the Mabola Protected Environment. It simulates groundwater drawdown, noting that while the deep fractured aquifer's zone of impact extends approximately 2 km downstream or North of the mine, significant impacts (drawdowns above 20m) are limited to the area immediately above the workings. The report suggests that the 15-year mine life may be shorter than the time required to reach a steady-state cone of dewatering. Groundwater-dependent ecosystems and springs within the site boundaries may be negatively impacted by the dewatering of the shallow aquifer, whereas those in the deeper fractured aquifer are considered unlikely to be affected due to the limited connection between the two aquifer systems.

The report finds that while executive education (ExEd) is in high demand and improves employee skills, innovation, and customer service within sub-Saharan African financial institutions, it remains overly theoretical. Graduates report increased professional mobility but dissatisfaction with pay, particularly when self-funding. The document recommends shifting toward practical, African-centered curricula and establishing partnerships with international business schools to enhance prestige and effectiveness.

The report provides the first comprehensive inventory of central government energy subsidies in India, covering coal, oil and gas, renewable energy, and electricity transmission and distribution (T&D). It finds that while total quantified subsidies declined from USD 35.8 billion in FY2014 to USD 20.4 billion in FY2016, support for fossil fuels remained more significant than for renewables. The study highlights a shift in the primary recipient of subsidies toward electricity T&D and notes that many consumer subsidies fail to reach the poorest populations, instead benefiting those above the poverty line.

The report analyzes the critical role of sediment in the Mekong River Basin and the threats posed by human activity and climate change. It finds that hydropower dams and riverbed mining are drastically reducing sediment loads, which threatens the productivity of the Mekong Delta and Tonle Sap, impacts fisheries and agriculture, and increases coastal erosion. The authors recommend enhanced regional monitoring, better data sharing between China and Lower Mekong countries, and the integration of sediment management into the entire hydropower lifecycle.

The study finds that federal and state subsidies, including tax preferences, make nearly half of new US oil investments profitable at oil prices of USD 50 per barrel. This support could increase US oil production by 17 billion barrels over several decades, contributing up to 6 billion tonnes of CO2 and representing as much as 20% of US oil production through 2050 under a 2 °C warming limit. The authors argue that removing these incentives would align with G20 commitments and provide climate benefits.

The study analyzes 174 international climate initiatives to determine their impact on greenhouse gas emissions compared to INDCs. It finds that a subset of 19 initiatives has a global reduction potential of 6-11 GtCO2 equivalents per year by 2030, contributing toward closing the 14 GtCO2e gap identified by the UNEP Emissions Gap Report 2015 for a 2°C pathway.

The document is a 'Comments and Responses Report' addressing objections to the Thabametsi Power Station's climate and palaeontological assessments. The developer, Thabametsi Power Company, defends the project's alignment with the 2010 Integrated Resource Plan (IRP) and argues that its greenhouse gas (GHG) emissions, while high, are consistent with international standards and comparable to other South African coal plants. It rejects claims that it must calculate the 'social cost of carbon' or assess community-level climate resilience, stating these fall outside the approved Scope of Work. The report also addresses water scarcity risks in the Lephalale region, asserting that Phase 1 will use existing water allocations from the MCWAP-1 scheme and employ dry-cooling technology to minimize consumption.

The document outlines the financial and environmental modeling for a proposed USD 100 million equity fund designed to scale up renewable energy projects. It details the use of an option mechanism to make early-stage development more attractive to investors, projecting that public finance could mobilize significant private capital and abate substantial CO2 emissions. It also compares RESF to various other clean energy funds and technical assistance initiatives across Africa, Asia, and Latin America.

The document details how the U.S. Department of Energy (DOE) uses the Energy Policy and Conservation Act of 1975 to mandate minimum efficiency standards for over 60 product categories. It highlights the economic and environmental benefits of these standards, including billions in consumer savings and significant reductions in carbon emissions. The text also discusses voluntary programs like ENERGY STAR, the impact of LED lighting, and the potential for future standards targeting electronic 'plug load' and smart building technologies.

A U.S. Court of Appeals ruling vacating the EPA's SNAP program threatens to prevent the avoidance of up to 9.5 billion metric tons of HFC emissions by 2050 and may hinder the U.S. ability to meet its commitments under the Kigali Amendment to the Montreal Protocol.

The document argues that federal light-duty vehicle standards set by the EPA and NHTSA in 2012 provide significant financial and environmental advantages to Nevada. By 2030, the average Nevada household is projected to be $3,050 richer due to gas savings. To date, Nevada has saved $290 million, and the state can expect 5,000 new jobs. Environmentally, the standards eliminate global warming emissions in Nevada equivalent to more than those generated by providing electricity to Reno.

The document argues that federal light-duty vehicle standards set by the EPA and NHTSA in 2012 provide significant financial and environmental advantages to New Mexico. By 2030, the average New Mexico household is projected to be $2,700 richer due to gas savings. To date, the state has saved $210 million, and the standards are expected to create 2,000 new jobs in the state. Environmentally, the standards eliminate global warming emissions in New Mexico nearly equivalent to those generated by providing electricity to Albuquerque.

The report evaluates the Thabametsi Power Station's impact on climate change and palaeontological heritage. It finds that the plant will have a 'High (Negative)' impact due to 'Very Large' annual GHG emissions of approximately 9.88 million t CO2e. While the plant's emissions intensity is slightly lower than some older Eskom plants slated for decommissioning, it remains high. The climate resilience assessment identifies water shortages and quality as high risks. The palaeontological assessment finds a medium risk of impact in the Swartrant Formation and low risk elsewhere, recommending monitoring by a palaeontologist during excavations.

The report assesses executive education in the Sub-Saharan African financial sector, finding that while it generally improves employee skills and organisational prestige, there is a significant gap between theoretical teaching and practical application. It recommends a shift toward 'action-learning' and the establishment of specialised regional training hubs.

The document highlights Peru's vulnerability to climate events, citing the severe impacts of the El Niño-Southern Oscillation (ENSO) and the high economic risks of climate change. It advocates for the implementation of the National Adaptation Plan (NAP) and Nationally Determined Contributions (NDC) to build resilience in priority sectors including water, agriculture, fisheries, forests, and health.