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291 results
Sharing Risk and Revenues from PPPs: Perspectives from current practice in the road sector
The paper examines how to balance the allocation of traffic and toll revenue risks between public agencies and private concessionaires in highway PPPs. It argues that full risk transfer is often suboptimal and suggests a combination of 'downside' protection (to ensure bankability and lower financing costs) and 'upside' sharing (to prevent excessive private returns). The author analyzes different metrics for calculating returns—gross revenue, net revenue, and internal rate of return (IRR)—and provides international examples from the US, Chile, and the Netherlands to illustrate the impact of these mechanisms on value for money (VFM).
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Document type: Research paper
Opposition to “H.R. 1734, Improving Coal Combustion Residuals Regulation Act of 2015”
A coalition of 290 organizations and individuals opposes H.R. 1734, asserting that the bill would weaken the U.S. Environmental Protection Agency's (EPA) 2014 coal ash rule. The signatories argue the legislation would delay health protections, eliminate public access to information, and remove national standards for drinking water protection, thereby increasing risks to vulnerable communities and the environment.
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Document type: Statement
Peatland Mining in Manitoba’s Interlake
The report assesses the environmental impact of peat mining in Manitoba, specifically focusing on the Interlake region. It estimates that nutrient leaching from all current peat lease holdings would contribute between 0.02% and 0.35% of total annual phosphorus and 0.04% to 0.87% of total annual nitrogen loads to Lake Winnipeg. Greenhouse gas emissions from land-use change due to peat extraction are estimated to be no more than 0.4 million tonnes CO2e per year, representing approximately 2% of Manitoba's total annual emissions. The document concludes that a cumulative environmental assessment (CEA) is an appropriate methodology for managing these activities and suggests mitigation strategies such as carbon credit trading, immediate post-extraction restoration, and the use of sedimentation ponds and constructed wetlands.
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Document type: Report
How Energy Storage Works
The document outlines various energy storage technologies—including pumped hydro, batteries, thermal, compressed air, flywheels, and hydrogen—detailing how they balance electricity supply and demand. It highlights the transition from a reliance on pumped hydroelectric storage toward rapidly scaling lithium-ion batteries, noting a 72 percent drop in battery capital costs between 2015 and 2019. The guide argues that energy storage enhances grid reliability, enables higher renewable energy integration, and provides community benefits by replacing polluting fossil fuel 'peaker' plants and increasing resilience against extreme weather.
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Document type: Guide
Freedom to Bully
The report argues that while open records laws are essential for government transparency, they are increasingly weaponized to target scientists and academics whose work threatens vested interests. By requesting vast amounts of private correspondence, draft papers, and raw data, harassers aim to chill speech, distract researchers from their work, and undermine scientific integrity. The document provides numerous case studies across fields such as climate science, tobacco research, and environmental health, noting that public universities are often unprepared to handle these intrusive requests. It calls for clearer legal exemptions to protect the scientific deliberative process and the development of institutional guidelines to safeguard researchers while maintaining public accountability.
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Document type: Report
BRIDGES TO NEW SOLAR BUSINESS MODELS
The report argues that current U.S. distributed solar (DPV) business models are overly customer-centric and fail to capture operational grid benefits, leading to conflict between utilities and solar companies. It proposes three 'bridge' business model building blocks: increasing access via subscription models, optimizing deployment for capacity and grid services, and bundling solar with other distributed energy resources (DERs). The authors emphasize that maximizing DPV value requires collaboration to reduce 'soft costs' and a shift toward standardized valuation methodologies and transparent data sharing between stakeholders.
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Document type: Report
The NRC and Nuclear Power Plant Safety in 2013
The Union of Concerned Scientists (UCS) evaluates the NRC's 2013 performance, noting a decrease in the number and severity of 'near-misses' but highlighting critical inconsistencies in enforcement. While the NRC successfully managed the restart of the Fort Calhoun plant and identified gaps in aging component oversight, it is criticized for allowing the Diablo Canyon and Oconee plants to operate despite known seismic and fire safety risks, and for improperly withholding information regarding the Jocassee Dam's potential to cause a total meltdown at Oconee.
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Document type: Report
4 Ways North Carolina Can Reduce its Power Sector Emissions
North Carolina can reduce its power sector CO2 emissions by 29 percent below 2011 levels by 2020 using existing policies and infrastructure. Key strategies include meeting Renewable Energy and Energy Efficiency Portfolio Standard (REPS) targets with in-state generation, increasing the utilization of combined cycle natural gas units, improving coal plant efficiency, and expanding combined heat and power (CHP) systems. Long-term reductions of 69 percent below 2011 levels by 2030 are possible through expanded legislation, including annual energy efficiency savings of 2 percent from 2015 to 2030.
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Document type: Fact sheet
Imagine a University
Amory Lovins advocates for universities to move beyond reductionist thinking by employing 'integrative design' to optimize buildings and campus systems. He suggests that by engaging students in hands-on, transdisciplinary projects, universities can transition from high energy costs to 'negative costs' through extreme efficiency and onsite renewables. The text emphasizes that the goal for all waste—energy, materials, and water—should be zero, transforming campuses into regenerative microcosms of a sustainable economy.
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Document type: Statement
Testimony of Abigail Dillen, Coal Program Director Earthjustice Before the Subcommittee on Environment and the Economy Committee on Energy and Commerce U.S. House of Representatives Legislative Hearing on “Federal and State Partnership for Environmental Protection Act of 2013;” the “Reducing Excessive Deadline Obligations Act of 2013;” and the “Federal Facility Accountability Act of 2013.”
Abigail Dillen of Earthjustice testifies that the 'Reducing Excessive Deadline Obligations Act of 2013' is a misguided attempt to derail lawsuits seeking to compel the EPA to regulate coal ash. The testimony highlights the severe environmental and health risks associated with the current lack of federal standards, including groundwater contamination by toxic metals, air pollution from fugitive dust, and the catastrophic potential for coal ash impoundment failures. Dillen emphasizes that the EPA has delayed necessary regulations for 13 years despite acknowledging their need, and that the proposed bill would leave the second largest toxic waste stream in the U.S. unregulated indefinitely.
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Document type: Statement
Testimony of Lisa Evans, Senior Administrative Counsel Earthjustice before the Subcommittee on Energy and Environment, Committee on Energy and Commerce, U.S. House of Representatives Hearing on the Discussion Draft of H.R. ____, The Coal Ash Recycling and Oversight Act of 2013
The document provides testimony from Earthjustice criticizing the Coal Ash Recycling and Oversight Act of 2013. It details the severe health and environmental risks posed by coal ash, including groundwater contamination and the threat of dam failures. The author argues that the proposed legislation fails to establish national protective standards, lacks federal backstop authority for the EPA, and omits critical deadlines for permit issuance, thereby leaving vulnerable communities at risk.
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Document type: Statement
OUR COASTAL COMMUNITIES AT RISK
The document explains that global sea level has risen approximately eight inches since the Industrial Revolution, driven primarily by thermal expansion and the melting of land ice due to global warming. It highlights that the U.S. East and Gulf coasts are experiencing some of the world's fastest rates of rise. Projections for 2100 range from 8 inches to 6.6 feet, with significant risks of permanent inundation, amplified storm surges, and shoreline erosion for over 100 million Americans living in coastal counties. The report argues that while adaptation is necessary, reducing heat-trapping emissions is the most effective way to limit the pace and magnitude of future sea level rise.
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Document type: Fact sheet
The NRC and Nuclear Power Plant Safety in 2012
The Union of Concerned Scientists reports that in 2012, the NRC oversaw 14 'near-misses'—events increasing core meltdown risk by at least 10-fold—at U.S. nuclear plants. The report argues that the NRC frequently fails to enforce existing regulations, such as allowing the Palisades Nuclear Plant to operate for nearly a month despite cooling water leaks that required shutdown within six hours. It also highlights a significant perception gap between NRC senior management and staff regarding the agency's internal safety culture, where half of the workforce reported negative reactions from supervisors after raising safety concerns.
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Document type: Report
Delay of the Definition of Solid Waste Final Rule
A coalition of 103 environmental and health organizations is urging the EPA to finalize the Definition of Solid Waste (DSW) rule, arguing that delays in regulation have led to significant environmental damage and disproportionately impacted low-income communities and people of color.
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Document type: Statement
Re: Docket ID No. EPA‐HQ‐OAR‐2012‐0632
The EESI advises the EPA against waiving the Renewable Fuel Standard (RFS) despite 2012 extreme weather, arguing that the RFS is not the cause of the economic harm to livestock and poultry producers. The document asserts that market forces and existing RFS flexibility are already reducing corn demand, and that a waiver would create policy uncertainty, deterring the estimated $168 billion in investment needed for advanced biorefineries by 2022. EESI maintains that the long-term benefits of the RFS—including reduced oil imports, lower greenhouse gas emissions, and rural economic growth—outweigh the potential short-term gains of a waiver.
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Document type: Statement
Renewable Biomass Can Help Reduce U.S. Petroleum Dependence: Farm Bill Energy Programs Are Key
The brief highlights the role of the 2008 Farm Bill in stimulating the U.S. biofuels industry and reducing oil dependence. It details specific programs like the Biomass Crop Assistance Program (BCAP) and the Biorefinery Assistance Program, noting that while initial investments of less than $2 billion have shown promise, significant further investment is required to meet Renewable Fuel Standard (RFS) targets for 2022. The author emphasizes that shifting to biofuels can improve energy security, support rural economic development, and mitigate climate change.
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Document type: Policy brief
Freshwater Use by U.S. Power Plants
The report finds that U.S. thermoelectric power plants withdrew between 60 billion and 170 billion gallons of freshwater daily in 2008, with coal plants accounting for the majority of this use. It identifies significant regional disparities in water intensity, noting that plants in the East generally withdraw more water due to a higher prevalence of once-through cooling. The analysis reveals that power plants contributed to water-supply stress in 20% of the 400 stressed watersheds identified. Furthermore, the report highlights critical gaps and inaccuracies in U.S. Energy Information Administration (EIA) data, including the total absence of reporting from the nuclear fleet. It argues that climate change and population growth will exacerbate these stresses, urging a shift toward low-water cooling technologies and low-carbon energy sources to ensure grid reliability and ecosystem health.
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Document type: Report
Freshwater Use by U.S. Power Plants
The report finds that U.S. power plants withdraw massive volumes of freshwater, with coal and nuclear plants being the most water-intensive. This demand contributes to water-supply stress in hundreds of watersheds and is exacerbated by droughts and heat waves. The authors highlight significant gaps and inaccuracies in EIA reporting and advocate for 'water-smart' energy choices, such as dry cooling and low-water renewables, to ensure energy reliability and water security.
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Document type: Executive summary
A Risky Proposition
The document outlines the financial hazards of investing in new or retrofitted coal plants in the U.S., citing competition from natural gas and renewables, rising fuel costs, and the likelihood of future carbon pricing. It highlights that coal is no longer the low-cost option it once was and that many existing plants are inefficient and ripe for retirement. The report suggests that the U.S. can replace most coal power with renewable energy, demand reduction, and natural gas within 15 to 20 years.
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Document type: Executive summary
EPA’s Blind Spot: Hexavalent Chromium in Coal Ash
The report documents the presence of hexavalent chromium, a known carcinogen, in leachate from coal ash disposal sites and groundwater across the United States. It highlights a discrepancy between the EPA's recognition of the chemical's toxicity in drinking water and its failure to account for ingestion risks in its coal ash risk assessments. The document provides evidence from EPA, DOE, and EPRI studies showing that chromium leaching from coal ash is nearly 100% hexavalent and often exceeds safety standards by thousands of times. It concludes that the EPA must designate coal ash as a hazardous waste under the Resource Conservation and Recovery Act to protect public health.
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Document type: Report