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The Water-Energy Nexus in the Western States: Projections to 2100
The report examines the 'water-energy nexus' in the western United States, specifically the eleven states of the Western Electric Coordinating Council (WECC). It models eight scenarios from 2008 to 2100, varying by carbon emission goals, water conservation mandates, and energy efficiency levels. The primary finding is that while power plants require water, their total consumption is small compared to agricultural and urban use, making the water-energy nexus a secondary concern in the region's broader water crisis. The analysis suggests that carbon pricing (around $70 per ton) is a more likely driver for shifting energy strategies than water pricing, as water prices would need to exceed $4,000 to $7,000 per acre-foot to make water-conserving energy scenarios the least-cost option.
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Document type: Report
California Water Supply and Demand: Technical Report
The California Water Supply and Demand Model (CWSD) assesses how climate change affects water availability and usage in California, focusing on the energy, urban, and agricultural sectors. The model evaluates scenarios with no adaptation, slow adaptation, and fast adaptation across different climate projections (B1 and A2). Key findings indicate that without adaptation, agricultural water demand will rise due to higher temperatures, particularly in the San Joaquin Valley. While slow adaptation may only marginally reduce use, fast adaptation—driven by higher water prices and technological efficiency—could significantly decrease demand. The report also extends its agricultural analysis to other Western U.S. states, noting a general increase in water demand by 2100.
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Document type: Report
Lovins GreenHome 1.0
The document details the 1984 construction of Amory Lovins's home, which utilized superinsulation, thermal mass, and passive solar design to eliminate the need for a conventional HVAC system. By focusing on functional end-uses rather than standard building codes, the design achieved a 99% reduction in space heating energy and a 90% reduction in electricity use compared to a conventional home of the same vintage. The study highlights that the capital costs of high-performance components were offset by the elimination of expensive heating equipment, resulting in a net construction cost increase of only 1% and a payback period of approximately six months based on 1983-84 prices.
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Document type: Case study
Delaware’s Dependence on Imported Coal
In 2008, Delaware imported all the coal used by its power plants, resulting in over $161 million leaving the state. While coal provided 70 percent of in-state power generation, the state has implemented an energy efficiency resource standard requiring a 2.5 percent annual reduction in electricity use from 2010 to 2015 and a renewable electricity standard targeting 20 percent of power from renewable resources by 2019.
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Document type: Fact sheet
Florida’s Dependence on Imported Coal
Florida imported all the coal used by its power plants in 2008, resulting in over $1.56 billion leaving the state economy. The document argues that investing in energy efficiency and homegrown renewables, such as biomass, solar, and offshore wind, can reduce this dependence and stimulate local economic growth.
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Document type: Fact sheet
Jobs from Renewable Energy and Energy Efficiency
The document outlines the job creation potential of the clean energy economy, citing that renewable energy (RE) and energy efficiency (EE) industries created over nine million jobs in the U.S. in 2007. It provides specific employment projections for various technologies, including wind, solar, bioenergy, and geothermal, across U.S. states and international markets such as Germany, Brazil, and India. The text also compares these figures to employment trends in the fossil fuel and nuclear sectors and details U.S. legislative efforts, such as the Green Jobs Act of 2007 and the American Recovery and Reinvestment Act of 2009, to support workforce training and clean energy deployment.
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Document type: Fact sheet
BLM prevents listing endangered plant, promotes oil shale development
The Bureau of Land Management (BLM) successfully influenced the U.S. Fish and Wildlife Service (FWS) to withdraw a 2006 proposal to list Graham's penstemon, a rare wildflower found in Utah and Colorado, as a threatened species. Internal documents reveal the BLM formed a "strike team" specifically to prevent this listing to facilitate oil and gas and oil shale development. The BLM provided misleading data regarding the plant's habitat slopes and falsely claimed no overlap between the species' habitat and potential oil shale development zones. Despite these assurances, a 2008 Programmatic Environmental Impact Statement (PEIS) opened over 90 percent of the proposed critical habitat for commercial oil shale leasing. Conservation groups subsequently sued the FWS in 2008, alleging the agency ignored scientific evidence and relied on unproven BLM conservation measures.
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Document type: Case study
The Menu A list of actions that leaders can take to make their community a plug-in pioneer
The document outlines a 'menu' of 'must have' and 'nice to have' actions for municipal governments, utilities, civic groups, and businesses to facilitate the transition to plug-in vehicles. It uses a hypothetical city modeled on Denver, Colorado, to estimate that achieving a goal of 10,000 plug-in vehicles (2% of registered vehicles) over five years would result in a net cost of approximately $10 million and create 250 net new jobs, while avoiding 2 million gallons of oil annually by 2014.
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Document type: Guide
Renewable Electricity Standards at Work in the States
As of February 2009, 28 U.S. states and Washington D.C. have implemented renewable electricity standards to increase the share of wind, solar, and bioenergy in their power supplies. The Union of Concerned Scientists projects these standards will support 76,750 MW of new renewable power by 2025, reducing annual carbon dioxide emissions by over 183 million metric tons. While success varies by state—with Texas significantly exceeding its targets—the document argues that state leadership proves these standards can reduce market barriers, justifying a national renewable electricity standard to enhance energy security and fuel diversity.
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Document type: Fact sheet
Developing Solar Friendly Communities
The report identifies non-hardware balance of system costs, which can reach 40% of installed system costs, as a significant barrier to rooftop solar adoption. It recommends the adoption of standardized frameworks such as the Solar ABCs Expedited Permit Process for permitting, the IREC Model Interconnection Procedures for grid connection, and the NNEC design criteria for net metering. The document highlights Colorado as a leader in solar-friendly policies, citing the Fair Permit Act's fee caps and the state's removal of net metering capacity limits for systems up to 120% of annual on-site consumption.
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Document type: Report
How Hydroelectric Energy Works
Hydroelectric power is a major source of emissions-free electricity that utilizes the hydrologic cycle to generate power via turbines. While it offers a flexible, renewable alternative to fossil fuels, it can cause significant ecological damage, such as blocking fish migration and emitting methane from reservoirs. The document details various turbine types, the role of pumped storage, and the potential for low-impact certification and new development in the U.S. and developing nations.
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Document type: Guide
Digging Deep: Are CFLs Really Green?
The document concludes that CFLs are significantly more environmentally friendly than incandescent bulbs over their life cycle. Despite more energy-intensive manufacturing and the presence of mercury, CFLs reduce greenhouse gas emissions by 75% over 10,000 hours of use. The analysis shows that mercury emissions from coal-fired power plants used to power incandescents exceed the mercury released by a CFL's operation and disposal. While frequent on-off cycling reduces a CFL's lifespan and increases its relative assembly emissions, they remain a net win for the environment and typically pay for themselves through energy savings.
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Document type: Research paper
Comparison of Life-Cycle Analyses of Compact Fluorescent and Incandescent Lamps Based on Rated Life of Compact Fluorescent Lamp
The study finds that CFLs provide significant environmental benefits over incandescents, primarily through reduced greenhouse-gas emissions during the operation phase. Despite concerns over their complex manufacturing and mercury content, the analysis shows that the energy efficiency of CFLs outweighs these factors. Even under short operating cycles that reduce lamp life, CFLs remain a net environmental win, though their economic payback period increases. The report also notes that while CFLs release more lead and arsenic than incandescents, they result in lower overall mercury emissions when accounting for the mercury released by coal-fired power plants required to power incandescent bulbs.
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Document type: Research paper
Saving Colorado’s HD Mountains from Damaging Drilling
Earthjustice filed lawsuits in district and federal courts of appeals to stop a natural gas drilling project in southwest Colorado's HD Mountains. The project, which proposed nearly 200 coalbed methane wells, was found to be inconsistent with the San Juan Forest Plan's protections for old-growth forests and water quality. As a result of the legal action, the Forest Service is performing additional environmental reviews and drilling in the roadless area has been halted.
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Document type: Case study
The Washington Clean Energy Initiative: Effects of I-937 on Consumers, Jobs and the Economy
The Union of Concerned Scientists analyzed the potential effects of Washington's Initiative 937 (I-937), which would require large electric utilities to source 15 percent of electricity from eligible renewable resources by 2020 and pursue cost-effective energy conservation. Under an expected case scenario, the report projects that by 2025, I-937 would result in $1.13 billion in cumulative savings on consumer electricity bills, the creation of 2,000 new jobs, and a reduction of 4.6 million metric tons of annual CO2 emissions. The analysis indicates that renewable energy and efficiency investments would be cost-competitive with conventional fossil fuel resources, providing long-term price stability and economic development, including $2.9 billion in new capital investment. Sensitivity analyses suggest that even under pessimistic conditions—such as higher wind costs or the expiration of federal tax credits—the initiative would generally still yield long-term savings and environmental benefits.
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Document type: Report
Why Build Green? Case Studies
The document highlights several green building projects that achieved significant energy savings and financial gains. Examples include the Sydney 2000 Olympic Village with its large-scale integrated photovoltaics, Village Homes in California which reduced household bills by one-half to one-third, and the Condé-Nast Building in New York, the first large-scale speculative green office building in the US. These projects demonstrate that sustainable design—such as passive heating/cooling, ground-source heat pumps, and efficient land use—can lead to higher property values, lower operating costs, and increased market demand.
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Document type: Fact sheet
Can't Say Climate Change: Carbon Conference
The document details how NOAA officials, including lab director Dr. David Hofmann, attempted to restrict the use of terms like "climate change" and "Kyoto" in presentations and papers at the Seventh International Carbon Dioxide Conference. Evidence from FOIA requests and interviews suggests that funding agencies stipulated topics be limited to "carbon dioxide measurements and modeling, rather than climate change and climate modeling." Dr. Pieter Tans reported that material concerning climate change, including laboratory website content, required White House pre-approval, and that the conference website was ordered to remove links connecting CO2 increase to climate change. Dr. Tans noted that such restrictions damage the credibility of government scientists and create an atmosphere of intimidation for some researchers.
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Document type: Case study
The Colorado Renewable Energy Standard Ballot Initiative: Impacts on Jobs and the Economy
The Union of Concerned Scientists analyzed the potential effects of Colorado's Amendment 37, which would require the state's largest electric companies to increase renewable energy use to 10 percent of sales by 2015. Under the most likely scenario, the report projects that the initiative would result in $236 million in consumer savings on electricity and natural gas bills, the creation of 2,000 new jobs by 2020, and a reduction of 3 million metric tons of annual CO2 emissions by 2025. The analysis highlights that wind resources would drive most of the development, providing significant capital investment and tax revenues for rural communities.
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Document type: Report
Agency Experts Aghast: EPA Adjusts Air Quality Models
In April 2004, air quality modelers from nine EPA regional offices protested a policy change allowing states to select their own baseline years for measuring pollution in 'Class I' areas. This policy emerged from a compromise with North Dakota, which had been out of compliance with the Clean Air Act regarding Theodore Roosevelt National Park, hindering plans for new coal-fired power plants. EPA scientists argued the change 'artificially inflate[s]' baselines to mask policy changes and feared it would set a national precedent, as other states like Colorado, Montana, South Dakota, Utah, and Wyoming sought to follow suit.
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Document type: Case study
Whole System Design
The document advocates for 'whole system design' in home construction and renovation, arguing that considering the interconnections between systems, occupants, and the environment can make green homes cost less than conventional ones. It emphasizes a 'passive before active' approach, prioritizing the building envelope and solar orientation to reduce the need for mechanical heating and cooling. Key strategies include optimizing south-facing glazing, utilizing thermal mass (such as masonry or water), and implementing 'cool roof' or 'green roof' systems. The guide also provides a comparative analysis of wall materials—such as straw bale, adobe, and SIPs—based on thermal performance, toxicity, and cost, while introducing Energy Efficient Mortgages (EEMs) as a financing tool for these improvements.
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Document type: Guide