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The document examines the practice of gas line extension allowances, where the cost of connecting new buildings to the natural gas system is funded through the bills of existing customers. It argues that this model is failing as customers shift toward electric alternatives, creating a financial risk of stranded investments. Eight US states have already taken action to reduce or phase out these subsidies, which RMI estimates could save up to $750 million in annual utility costs across those states. Evidence from California and Colorado suggests that removing these subsidies encourages developers to choose all-electric options over gas.

Wildfire smoke pollution in the U.S. has increased significantly, with per-person exposure four times higher between 2020-2024 than during 2006-2019. Research indicates that fine particulate matter (PM2.5) from wildfire smoke caused approximately 164,000 premature deaths in the U.S. from 2006 to 2020, with human-caused climate change accounting for about 15,000 of those deaths. While the West and Northwest experience the most smoke days, smoke is a nationwide issue, with every county in the contiguous U.S. seeing at least 16 smoke days annually. The rise in smoke since 2016 has stalled or reversed air quality improvements in 30 U.S. states, threatening the goals of the Clean Air Act.

The Clean Air Task Force (CATF) supports the Washington Department of Ecology's draft forest offset rule, which introduces more rigorous standards for carbon credit calculation and verification. Key proposed changes include recalculating baselines every 10 years, increasing the default market leakage rate from 20% to 40%, and using spatially explicit risk data for buffer pool contributions. While CATF praises these steps toward transparency and conservatism, it recommends further improvements, such as adopting empirical dynamic baselines, removing buffer pool contribution caps for fire and biotic risks, and moving away from real estate appraisals for avoided conversion projects to ensure credits represent actual CO2 reductions.

The policy brief outlines six priorities for U.S. states to leverage the One Big Beautiful Bill Act (OBBBA) and other federal incentives: immediate electric vehicle fleet conversion, permitting and interconnection reform, filling financial gaps via public-private partnerships and aggregate purchasing, improving energy affordability, launching home energy rebates, and attracting cleantech manufacturing. It emphasizes the urgency of acting before federal tax credits expire, specifically noting a September 30, 2025, deadline for EV credits and a July 2026 construction start deadline for certain solar and wind credits.

The document examines how climate change is creating a home insurance crisis in the U.S., characterized by skyrocketing premiums and widespread policy non-renewals. It asserts that 'Big Oil' companies, who knew about the risks of fossil fuels as early as 1954, are responsible for these conditions. The report highlights specific state-level crises in Florida, California, and Hawaiʻi, and advocates for policy solutions—such as subrogation and legislative surcharges—to shift the financial burden from policyholders to the fossil fuel industry.

The document analyzes ODS destruction projects, which provide high-impact carbon credits by permanently eliminating potent greenhouse gases like CFCs. While these projects are considered highly additional and have high retirement rates, they face scaling challenges due to a lack of destruction facilities in developing countries and complex transboundary regulations. Key quality risks involve the monitoring, reporting, and verification (MRV) of the chain of custody and baseline leakage assumptions, though these are generally well-mitigated by existing methodologies.

Earthjustice reports on its efforts to secure and defend health protections against pollution and toxic chemicals. The organization highlights the use of 'citizen suits' under the Clean Air Act and Clean Water Act to hold polluters accountable, such as litigation against Suncor Energy and the County of Hawai‘i. The report emphasizes a strategic shift toward state and local legal avenues—including constitutional 'right to a healthy environment' claims in Hawai’i and New York—to mitigate the impact of federal rollbacks by the Trump administration. Key achievements include pushing for bans on PFAS in menstrual products in New York, reducing flame retardants in Washington state, and implementing zero-emissions truck rules in California. The document also details the projected life-saving impacts of federal rules secured in 2024, such as the Air Toxics Rule and the Mercury and Air Toxics Rule Update.

The document analyzes how federal clean energy incentives have driven over $321 billion in investments across the U.S. between Q2 2022 and Q1 2025, highlighting that these investments are heavily concentrated in Southern and Western states and Republican-held congressional districts. It argues that rolling back these incentives would disproportionately harm these regions and jeopardize significant outstanding investments in states like Louisiana and North Dakota, as well as major projects in emerging hubs like Southern Arizona and the Southeast.

The industrial sector accounts for nearly a quarter of US greenhouse gas emissions in 2022, characterized by process-based and high-temperature emissions. Using an analysis of Washington state, RMI demonstrates that emissions-intensive, trade-exposed (EITE) sectors—particularly refineries, which produce 68 percent of EITE emissions—could reduce emissions by 39 percent by 2035 and 91 percent by 2050. This transition would require an additional 13,975 GWh of annual electricity by 2050 in Washington, representing a 65 percent increase in industrial demand. To enable this, states must leverage tools such as grid access, permitting reform, and financial supports like green banks to complement federal incentives.

RMI's analysis of Washington's emission-intensive, trade-exposed (EITE) industrial sectors indicates that existing and near-term technologies can reduce emissions by 39% by the end of 2034. The report argues that these potential reductions justify updating the state's Cap-and-Invest program after 2034 with sectoral benchmarking and new no-cost allowance reduction schedules to maintain efficiency and equity. To support this transition, RMI provides 18 policy recommendations categorized by focus area—Updating Standards and Regulations, Cap-and-Invest Program Evolution and EITE Treatment, and State Support—and prioritized by urgency.

The document outlines the drivers and impacts of coastal erosion, highlighting the vulnerability of the 15% of the global population living near coasts. It critiques temporary solutions like beach nourishment and emphasizes the loss of coastal wetlands, which act as storm defenses. The guide offers journalistic advice on handling the complexity of community resettlement, utilizing public records, and valuing indigenous knowledge. It also suggests specific data sources from NOAA and the USGS to track shoreline changes and the costs of erosion control.

The document outlines the drivers and impacts of shoreline loss, noting that roughly 15% of the global population lives near coasts and faces increased erosion from climate-fueled storms and rising seas. It highlights the high cost and temporary nature of beach renourishment, citing North Carolina's expenditure of over $1 billion since the 1950s. The guide provides reporting advice from journalist Olga Loginova, emphasizing the importance of embracing complexity, using public records requests, and valuing Indigenous traditional knowledge. It also lists specific global examples of coastal loss in Scotland, Nigeria, and the US, alongside recommended data sources from NOAA and the US Geological Survey.

The Regional Clean Hydrogen Hubs program is designed to demonstrate localized hydrogen production and end-use to create a synergistic national hydrogen economy. The author warns that planned funding cuts by the Trump administration would jeopardize an estimated 334,280 jobs and tens of billions of dollars in private sector investment. The document emphasizes that a network of hubs is necessary to create a viable market for hydrogen-fueled equipment and to maintain U.S. leadership in low-carbon hydrogen production and technology exports.

The analysis reveals a significant increase in fire weather days across much of the contiguous U.S., with the western U.S. experiencing far more frequent fire weather than the east. While the western U.S. has seen strong increases, particularly in the Southwest during spring and summer, parts of the eastern U.S. have also seen impactful increases, especially in the Southeast and Northeast. The study emphasizes that while human activity causes 87% of wildfires, fire weather primes the landscape for these fires to ignite and spread.

The CEO of Mighty Earth reports on rewilding successes, including the planned restoration of grizzly bears to Washington state and a feasibility study for their return to California. The note also celebrates the creation of the 729,000-acre Patagonia Azul Provincial Park in Argentina and calls for Indonesia to shift its 'food and energy estates' project from intact forests to degraded lands to protect biodiversity and climate goals.

The report argues that current US energy efficiency programs are overly complex, resulting in low participation rates (0.5% to 3% of households) and significant barriers for low-to-moderate income (LMI) families. To drive heat pump adoption and meet climate targets, the document recommends simplifying incentive structures (e.g., using $/unit instead of $/BTUh), aligning equipment specifications with federal standards like ENERGY STAR, and providing up-front discounts with prompt contractor reimbursement. It emphasizes the need for long-term funding (3-5 years), market development through workforce training, and a 'climate-forward' framework that prioritizes greenhouse gas reductions over simple energy savings. For equity, it suggests partnering with community-based organizations, setting LMI-specific budget targets, and funding pre-electrification measures like electrical panel upgrades.

In February 2025, U.S. temperature anomalies were split, with 92 cities warmer and 99 cooler than the 1991-2020 normal. Despite an average anomaly of -0.3°F and significant cold in the Northern Rockies and Plains, no city set a low temperature record for the month. Conversely, Phoenix, Arizona, recorded its hottest February on record. Analysis using the Climate Shift Index (CSI) indicates that temperatures in many cities remained warmer than they would have been without climate change, as more cities experienced days with positive than negative CSI values. Long-term trends show that 189 out of 191 analyzed stations have warmed since 1970, with Juneau, Alaska, being the fastest-warming station for February.

The US Treasury's final 45V guidance establishes a market-based framework for green hydrogen projects to qualify for tax credits based on three pillars: incrementality, temporality, and deliverability. The rule allows annual matching of clean power until 2030, after which hourly matching is required. It provides flexibility by allowing emissions calculations per hour and per electrolyzer, preventing an 'all or nothing' loss of credits. Developers can currently use bilateral contracts and existing registries to demonstrate viability to financiers, while preparing for a more sophisticated hourly Energy Attribute Credit (EAC) market.

The document argues that repealing federal technology-neutral electricity tax credits (§45Y and §48E) would significantly increase household energy bills across the United States. Drawing on analyses from multiple research groups, it estimates that national annual household energy bills would rise by $40–$60 in 2030, $56–$150 in 2035, and $140–$220 by 2040. The report highlights that these credits lower costs by reducing investment expenses for wind, solar, battery, nuclear, and geothermal projects, savings which utilities are regulated to pass on to consumers. Repeal would likely lead to substantial price hikes in specific states, with some households facing increases over $500 annually.

The report argues that the private equity model of high leverage and short-term profit maximization is ill-suited for the US agricultural industry, which is characterized by fluctuating margins and a vulnerable migrant workforce. It highlights a trend of consolidation, citing that two private equity-owned firms control a majority of US fresh carrot production. The document details several case studies of bankruptcy and labor abuse, including Prima Wawona, Trinitas Farming, Windmill Farms, and Grimmway Farms. It further notes that the industry's reliance on H-2A visas and exemptions from the National Labor Relations Act exacerbates worker vulnerability, a situation further complicated by the Trump administration's mass deportation policies.