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The report examines how U.S. states, specifically Maine, California, and Washington, are implementing policies to eliminate persistent organic pollutants (POPs) and persistent, bioaccumulative and toxic chemicals (PBTs) while the federal government remains stalled on ratifying the Stockholm Convention. It highlights state-level bans on mercury-containing products, brominated flame retardants (PBDEs), and the pesticide lindane, as well as efforts to reduce dioxin emissions. The document argues that these state actions serve as 'laboratories' for reform and that federal implementing legislation should support rather than preempt these tougher state standards.

The document details the distribution of Recovery Act funds for high-speed rail awards across the West, Midwest, Southeast, and Northeast regions of the United States. The West region received the highest allocation at $2,942,000,000, followed by the Midwest at $2,599,600,000, the Southeast at $1,870,000,000, and the Northeast at $485,000,000. Key projects include the California High-Speed Rail, the Tampa-Orlando Phase 1 HSR, and various track, signal, and station upgrades across multiple state corridors to increase train speeds and reliability.

The document consists of a collection of 45 figures mapping the FSEIS routes for nuclear waste transport through nearly every U.S. state and the District of Columbia.

The document argues that U.S. states should implement 'no-regrets' actions in building and industrial efficiency to counter the negative economic impacts of the One Big Beautiful Bill Act (OBBBA), which is projected to cost households $170 billion in higher energy bills and reduce GDP by $1.1 trillion by 2035. It advocates for the deployment of heat pumps and electric boilers, noting that residential heat pumps have held a 56 percent market share for space heating since 2021. The briefing specifically highlights the potential of industrial electric heat pumps for low-temperature heat (under 200 °C), which are two to four times more efficient than fossil-fueled versions but currently make up less than 2 percent of the market. To overcome barriers such as upfront capital and high electricity rates, the document recommends a suite of policy actions, including adopting modern energy codes, implementing building performance standards, providing point-of-sale rebates, and creating revolving loan funds.

The report identifies 'coronavirus profiteers' across the meat, auto, airline, logging, and fossil fuel industries who lobbied for deregulation and subsidies during the pandemic. It contrasts these with 'climate heroes'—including certain European automakers, EU leadership, and specific palm oil companies—who continued to pursue emissions reductions and forest protection. The text emphasizes that weakening environmental protections, such as allowing deforestation and air pollution, increases public health vulnerability to respiratory diseases and future pandemics.

The document describes a framework for calculating residential utility bills by combining NREL ResStock building load data with electric and gas tariff data from Genability and RateAcuity. It details specific adjustments made to tariffs for Xcel Energy (Minnesota), Pepco (Maryland), Central Maine Power (Maine), and Eversource Energy (Massachusetts) to ensure analytical consistency. The analysis specifically models upgrades to high-efficiency cold-climate air-to-air heat pumps and evaluates the impact of 'electrification-friendly' rate designs on customer costs.

The report identifies a significant gap in energy efficiency within US affordable housing, noting that public housing is 38% more inefficient than private residential buildings. It categorizes barriers into programmatic (regulatory and information gaps), financial (funding backlogs and complex mixed-financing), technical (lack of integrative design and energy modeling), and operational (tenant incentives and lack of retro-commissioning). To address these, the report recommends streamlining HUD's Energy Performance Contract (EPC) processes, adopting life-cycle cost analysis, utilizing a 'whole-building' design approach, and implementing retro-commissioning, which can reduce energy consumption by a median of 16% with a fast payback period.

The report provides a state-by-state breakdown of progress toward 2020 Clean Power Plan benchmarks, noting that some states have exceeded 500% of their goals while others show 0% progress. It highlights the role of energy efficiency, renewable energy standards, and regional initiatives in achieving these targets.

The document assesses the economic benefits of transitioning to a low-carbon economy in the United States, highlighting that clean energy investments create more jobs than fossil fuel spending and that renewable energy is increasingly cost-competitive. It warns that delaying climate action could result in annual GDP losses of 1-10% by 2100, while emphasizing the potential for revitalizing rural communities and boosting the domestic manufacturing sector through cleantech.

The document defines GHG emissions registries as databases for tracking emissions from individual emitters, distinguishing them from top-down national inventories. It details the legal mandate for the U.S. Environmental Protection Agency to develop a national registry by mid-2008, funded by a December 2007 appropriations bill. The text outlines the role of registries in cap-and-trade programs—specifically for ensuring compliance and market efficiency—and describes the technical requirements for data collection, quantification, and verification to ensure consistency and transparency.

The document analyzes the restoration of approximately 4 million hectares of forest in New England between 1880 and 2000, which occurred largely through the passive abandonment of agricultural land. It identifies market shifts toward Midwestern agriculture and the subsequent decline of small-scale regional farming as primary drivers. While ecological conditions and policy measures like the Weeks Act of 1911 supported this recovery, the report warns that current trends are reversing due to residential development, population growth, and ecological pressures such as deer browsing.

The document outlines four types of solar metering arrangements designed to overcome the limitations of the traditional "one customer, one meter" model. Net metering provides benefits to a single customer via one meter. Virtual net metering (VNM) allows multiple customers with separate meters to share credits from a system, often in multi-tenant or municipal buildings, and is permitted in states including California, Colorado, and Massachusetts. Community solar enables joint ownership or sponsorship of systems for those unable to host arrays on-site, utilizing models such as utility-sponsored, special purpose entity, or non-profit "buy a brick" projects. Meter aggregation allows a single customer with multiple utility accounts to aggregate annual consumption across separate buildings, enabling the installation of larger systems and higher power sales back to the grid.

The document argues that integrating natural infrastructure—such as forests and wetlands—with built infrastructure can reduce water treatment costs and enhance water security. It provides a framework for 'green-gray analysis' to compare these options, discusses the scientific links between forest cover and water quality, and outlines various finance mechanisms and stakeholder engagement strategies to scale these efforts across the U.S.

Seaweed offers multiple climate benefits, including storing more new carbon annually than mangroves, seagrasses, and salt marshes combined. It serves as a low-carbon food source that requires no land, freshwater, pesticides, or fertilizers, and can be used to create plastic alternatives. In regions like Maine, seaweed farming provides income diversification for fishers facing warming oceans and acts as a natural buffer against storm-driven coastal erosion. Additionally, seaweed helps reduce local ocean acidification and can lower carbon emissions when integrated into the diets of livestock such as pigs, fish, shrimp, and chickens.

From March 18-22, 2024, 257 students at Blue Hill Consolidated School in Maine participated in Seaweed Week, an educational initiative utilizing curricula from the Maine Aquaculture Innovation Center and WWF. The program combined literature, hands-on activities, and expert interaction to highlight kelp as a sustainable crop that supports marine ecosystems and provides economic opportunities for local lobstermen.

Seaweed, particularly kelp, serves as a nutrient-dense superfood and a versatile raw material for products ranging from fertilizer to printer ink. Environmentally, it improves water quality by absorbing nitrogen and phosphorous, provides habitats for marine wildlife, and requires no land, freshwater, pesticides, or fertilizers to grow. From a climate perspective, seaweed can store greenhouse gases, buffer against ocean acidification, and reduce the global food system's carbon footprint. In the US, specifically Maine, the industry faces regulatory hurdles regarding permitting, despite offering clean, alternative income for fishers.

The report outlines the essential structural elements of Extended Producer Responsibility (EPR) programs, detailing how the choice of Producer Responsibility Organization (PRO) systems, operational responsibilities, cost coverage, financial models, fee structures, and funding mechanisms influence environmental and economic outcomes. It emphasizes the importance of harmonization across jurisdictions and the use of eco-modulated fees to incentivize sustainable packaging design.