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The document records a multi-sector call for a U.S. transition to clean energy, arguing that government investment and regulation can simultaneously drive economic growth, reduce oil dependence, and address climate change.

The Union of Concerned Scientists (UCS) documents a pattern of scientific misconduct within the Bush administration, citing cases where political objectives overrode scientific evidence. Key examples include the disregard of environmental impacts in mountaintop removal mining, the denial of over-the-counter access to emergency contraception despite expert advice, and the manipulation of endangered species data for salmon, Florida panthers, bull trout, and trumpeter swans. The report also details the use of political litmus tests for scientific advisory panel appointments and recommends reforms to protect government scientists and ensure the independence of advisory committees.

The report finds that diesel pollution caused an estimated 3,000 premature deaths and $21.5 billion in health costs in California in 2004. While new engine standards will reduce emissions over time, the longevity of existing engines means significant health risks persist. The authors argue that full implementation of California's Diesel Risk Reduction Plan and increased funding for the Carl Moyer Memorial Air Standards Attainment Program could prevent 11,000 premature deaths and save between $48 billion and $70 billion by 2020.

The Union of Concerned Scientists (UCS) uses the 'bathtub curve' model to analyze nuclear plant risks, identifying high failure rates during the initial 'break-in' phase and the final 'wear-out' phase. The report argues that the NRC's reliance on flawed risk assessments and its failure to consistently enforce technical specifications have increased the risk of catastrophes. It specifically highlights the Davis-Besse plant as a case of regulatory failure and recommends excluding new reactors from Price-Anderson liability protection, requiring prototype testing, and overhauling aging management programs for plants seeking license renewals.

The Union of Concerned Scientists concludes that the Block 2004 GMD system is ineffective against real attacks due to a lack of realistic testing and vulnerability to simple countermeasures. The report critiques the Missile Defense Agency's (MDA) claims of high effectiveness, noting that the system's radars cannot discriminate warheads from decoys and that the deployment schedule is driven by political rather than technical milestones.

The document details how the U.S. Department of the Interior, under the direction of Deputy Secretary J. Stephen Griles, shifted the focus of a court-mandated environmental impact statement (EIS) from minimizing environmental damage to streamlining coal-mining permits. Despite federal agency data showing that mountaintop removal mining caused the loss of over 1,200 miles of streams and 7% of Appalachian forests between 1985 and 2001, the administration allegedly stripped 'significant' or 'severe' language from reports and omitted substantive alternatives to mitigate damage. The report highlights a conflict of interest, noting Griles' former role as a mining lobbyist and his frequent meetings with industry representatives during the EIS's redirection.

The EPA proposed a selenium standard for fish tissue of 7.9 ppm, which scientists argue is based on a faulty reading of a study by Dennis Lemly. The error involved an incorrect assumption about sample size, leading the EPA to underestimate fish mortality rates. Despite protests from over 90 scientists and a recommendation for a 5.85 ppm limit, the EPA maintained the 7.9 ppm standard in its 2004 draft, potentially benefiting the coal-mining industry at the expense of aquatic ecosystems.

The document details how federal agencies like NOAA and NASA used media policies to control scientists' public communications on climate change. It provides specific examples of scientists, such as Dr. Thomas Knutson and Dr. Kevin Trenberth, whose media appearances were blocked or diverted to political appointees or scientists with opposing views when their research highlighted human influence on the climate or hurricane intensity.

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.

The report argues that California can significantly reduce its global warming impact by mandating the adoption of existing and near-term vehicle technologies. Modeling shows that currently available improvements in engines, transmissions, and air conditioning could reduce fleet average heat-trapping emissions by 20%, while advanced technologies available within five years could achieve a 40% reduction. These improvements are presented as cost-effective, with fuel savings offsetting initial costs within a few years, and would provide a model for other U.S. states and Canada.

The Union of Concerned Scientists (UCS) reports a systemic pattern of scientific interference by the Bush administration across multiple federal agencies. The investigation details the suppression of climate change data at the EPA, the manipulation of mercury emission standards, and the censorship of research on airborne bacteria at the USDA. It further documents the appointment of underqualified or industry-linked individuals to scientific advisory panels and the use of political litmus tests for nominees. The report argues that these actions undermine public health, safety, and national security, and calls for executive and congressional action to restore scientific integrity in policymaking.

The report compares conventional, advanced, and hybrid-electric diesel and gasoline vehicles across five passenger vehicle classes. It finds that while diesel engines offer higher inherent fuel economy, they are less cost-effective than improved gasoline vehicles for reducing oil use and heat-trapping gases due to higher up-front costs and the higher petroleum intensity of diesel fuel. The report also highlights significant public health concerns, noting that diesel vehicles historically emit substantially more toxic soot and nitrogen oxides than gasoline vehicles. While new federal Tier 2 standards aim to close this gap, the report argues that diesel's future depends on overcoming technical challenges in emissions control and ensuring real-world performance matches certification. It recommends maintaining strict emissions standards, modifying CAFE to use energy-equivalent measures, and expanding inspection and maintenance programs to include diesel vehicles.

A pilot study by the Union of Concerned Scientists found that traditional seeds of corn, soybeans, and canola sold to U.S. farmers are pervasively contaminated with low levels of DNA from genetically engineered varieties. The report warns that porous seed production systems could allow dangerous pharmaceutical or industrial transgenes to enter the food supply and argues that this contamination threatens organic agriculture, international trade, and the integrity of seed repositories.

The report alleges that the NRC has failed to enforce 10 CFR 50.46, allowing 68 of 103 U.S. nuclear reactors to operate with a known vulnerability to containment sump clogging. This issue, which can lead to core meltdown and containment failure during a loss-of-coolant accident (LOCA), has been resolved in dozens of PWRs globally but remains unaddressed in the U.S. The author contends that the NRC selectively uses risk-based probability arguments to justify inaction while ignoring its own regulations and the evidence provided by pseudo-plant-specific analyses from Los Alamos National Laboratory. The report calls for Congressional hearings to reform the NRC's enforcement and resolution processes for generic safety issues.

The Union of Concerned Scientists report 'A Blueprint for Saving Lives, Money, and Gasoline' analyzes the safety and environmental shortcomings of SUVs and light trucks in the United States. It highlights high rollover fatality rates, significant air pollution, and poor fuel economy compared to passenger cars. To demonstrate potential improvements, the authors propose two model vehicles—the UCS Guardian and the UCS Guardian XSE—which utilize existing technologies such as unibody construction, advanced engines, and electronic stability control to increase fuel efficiency and reduce fatalities without sacrificing vehicle size or performance.

The Union of Concerned Scientists (UCS) graded U.S. states on their commitment to renewable energy, finding that 34 states received failing grades (D or F) and only 16 passed. While 19 states have enacted standards or funds projected to add 15,215 MW of capacity by 2017, the gains are highly concentrated, with California and Texas accounting for nearly 60 percent of forecasted new development. The report argues that current state-level efforts are insufficient compared to the technical potential of wind, solar, bioenergy, geothermal, and landfill gas, and advocates for a national renewable electricity standard to achieve more equitable and cost-effective energy generation.

The report evaluates U.S. state commitments to renewable energy, finding that while technical potential is vast, most states lack binding policies. It grades states based on renewable electricity standards (RES) and funds, noting that a small number of states, led by California and Nevada, drive most projected gains, while 34 states received failing grades. The authors argue for a national renewable electricity standard to ensure equitable and cost-effective growth.

The report assesses how rising temperatures and shifting precipitation patterns will affect the Great Lakes region, predicting warmer, drier summers and increased extreme weather. It details vulnerabilities in aquatic and terrestrial ecosystems, agriculture, and human health, while recommending emission reductions and adaptive management.

The document outlines various biomass sources, including residues and perennial energy crops like switchgrass, and describes conversion technologies ranging from direct combustion to fuel cells. It argues that expanding biomass production can revitalize rural economies and protect land quality while potentially providing a significant share of U.S. electricity and motor fuel.

The report argues that hybrid electric vehicles (HEVs) can bridge the gap between current conventional vehicle technology and the long-term adoption of hydrogen fuel cells. It categorizes hybrids into mild, full, and plug-in types based on technological steps like regenerative braking and electric-only drive. Modeling suggests a passenger fleet using advanced full hybrids could reach an average of 60 mpg, significantly reducing oil consumption and greenhouse gas emissions while remaining cost-effective for consumers over the vehicle's lifetime.