Search Climate Insights Directory

The report finds that the 2025 Reconciliation bill would significantly increase household energy costs, lead to substantial job losses, and increase greenhouse gas emissions by repealing clean energy incentives and EPA standards. Despite proposed increases in oil and gas production, the analysis suggests that higher demand for fossil fuels and the loss of low-cost renewable capacity would raise overall energy spending and decrease GDP.

The U.S. public EV charging network grew more than six-fold between 2016 and 2025, reaching nearly 196,000 ports. While California leads in total numbers and northeastern states lead in density, significant coverage gaps remain in the southern, central, and plains regions. To support a projected 33 million EVs by 2030, the U.S. may need 1 million additional public chargers, including 170,000 DC fast chargers.

The document argues that the market price of fossil fuels fails to account for significant 'hidden costs' or externalities occurring during extraction, transport, and combustion. It details the severe health impacts of coal mining, such as black lung and cardiovascular disease, and the environmental degradation caused by mountaintop removal in Appalachia. The paper also examines the risks of oil and gas drilling, including methane leakage, water contamination from fracking, and catastrophic spills. Finally, it quantifies the economic burden of air pollution and global warming emissions, contrasting these with the lower impacts of renewable energy sources.

RMI analysis indicates that replacing coal-fired units at the Colstrip Generating Station with a portfolio of solar, wind, and battery storage could save Montana ratepayers between $500 million and $1.17 billion over 30 years. The document urges Northwestern Energy and the Montana Public Service Commission to prioritize coal-to-clean reinvestment and Energy Infrastructure Reinvestment (EIR) financing in upcoming rate cases and integrated resource plans.

The North Plains Connector (NPC) is a $3.2 billion, 420-mile high-voltage direct current transmission project designed to connect the western and eastern electric grids. The developer, North Plains Connector LLC, has adopted a "landowner-first approach," prioritizing voluntary agreements over eminent domain and modifying the route by adding 50 miles to accommodate local siting requests. Community benefits include $3.9 million in grants distributed via local foundations, over $62 million in federal TSED grants secured for local infrastructure, and the creation of approximately 800 construction jobs. The project also facilitates expanded wind energy exports for the Standing Rock Sioux. While this high-upfront-investment model has reduced local opposition, the document notes it requires "patient capital" and its long-term financial efficiency compared to traditional development remains unproven.

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 Federal Hydrogen Hub Program aims to establish a national hydrogen network through seven regional hubs, with funding distributed across four phases over 8-12 years. While hubs claim local economic and environmental benefits, the guide notes that many proposed projects may increase pollution or waste energy. As of January 28, 2025, the DOE has instructed all recipients to cease activities related to Community Benefits Plans, pending further guidance.

In December 2024, 166 out of 191 analyzed U.S. cities were warmer than normal, with the most significant anomalies occurring in Montana. While long-term warming trends are evident—with 189 of 191 stations showing positive trends since 1970—daily climate attribution via the Climate Shift Index (CSI) remained generally low, though specific cities in Puerto Rico, Hawaii, and Alaska saw several days where temperatures were significantly more likely due to climate change.

The 2025 Plowprint Report shifts its focus from annual data analysis to identifying strategic opportunities and policy solutions for grassland conservation in North America. Due to changes in government data, the author has paused its typical analysis of grassland conversion in the Great Plains. The document highlights several collaborative initiatives, such as the Central Grasslands Roadmap and the JV8 Central Grasslands Initiative, and advocates for policy reforms including the expansion of the Sodsaver program, strengthening the Conservation Reserve Program (CRP), and reforming biofuels policy to prevent further cropland expansion. It also emphasizes the role of Tribal food sovereignty and bison restoration in maintaining ecosystem health.

The petition argues that the 1993 Recovery Plan's compartmentalized approach of managing grizzly bears in isolated recovery areas is outdated and fails to ensure long-term genetic and demographic resiliency. It proposes a unified metapopulation framework that manages bears as a single interconnected population across the Northern Rockies, requiring the establishment of natural connectivity and the implementation of stricter regulatory mechanisms to reduce human-caused mortality. The petitioners oppose current efforts by Idaho, Montana, and Wyoming to delist grizzly bears, asserting that recovery is premature without a connected metapopulation and durable protections against threats such as habitat fragmentation, climate change, and lethal management policies.

The Union of Concerned Scientists interviewed 19 legal experts to identify critical research gaps in climate litigation. The report categorizes these into three priority areas—attribution science, human health, and economic modeling—and five strategic areas, including greenwashing and emissions accounting. A central cross-cutting theme is the need for research on losses and damages. The authors emphasize that while IPCC reports provide a foundation, litigation requires more granular, geographically specific data and better communication between scientists and legal teams to overcome barriers such as differing timelines and data gaps in the Global South.

Analysis of 242 U.S. cities shows that fall temperatures have increased by an average of 2.5°F since 1970, with the most intense warming occurring in the Southwest. This trend is characterized by a higher frequency of above-normal temperature days, which prolongs risks related to heat-related illness, wildfires, and allergies, while also affecting agricultural growing seasons and energy demand for cooling.

Dr. W. Payton Gardner's review concludes that the PHC and GMR for the Bull Mountain Mine contain significant omissions and non-conservative assumptions. The review highlights a failure to quantitatively analyze impacts on over 50 local springs and shallow groundwater wells, a groundwater model that ignores fracture flow processes and incorrectly assumes 'healing' in mudstone layers, and a mitigation strategy relying on the UB2A sandstone aquifer that is likely insufficient in both volume and water quality.

The report argues that decentralized election administration in the US has created a patchwork of transparency policies that can undermine democratic legitimacy and disproportionately affect marginalized communities. It provides specific recommendations for improving the accessibility and accuracy of voter files, the transparency of ballot processing and tracking, and the implementation of robust ballot curing and risk-limiting audit procedures.

The document outlines the risks associated with private equity's expansion into various U.S. healthcare sectors, detailing financial strategies that prioritize short-term profit over patient safety and recommending stronger regulatory oversight.

The report asserts that Western US states must collaborate on regional electricity transmission expansion to realize significant economic gains. It highlights that energy export states could see their market access grow from $3 billion to $40 billion per year by 2050 with increased capacity, while states with clean energy standards could reduce costs by over 30% through expansive regional planning.

The report argues that reconductoring existing transmission lines with advanced conductors can rapidly increase grid capacity and reduce costs, but is hindered by utility incentive structures, rigid equipment standards, and planning gaps. It recommends aligning utility incentives, updating regional planning horizons, establishing efficiency standards, and expanding federal funding and workforce training to overcome these hurdles.

The Southeast Alaska Indigenous Transboundary Commission (SEITC) is seeking relief from the Inter-American Commission on Human Rights due to the impacts of hard-rock mining in British Columbia, Canada. The document argues that mining projects in the Taku, Stikine, and Unuk watersheds threaten the subsistence and cultural rights of Southeast Alaska Native communities through heavy metal pollution and habitat destruction. SEITC alleges that Canada and B.C. have failed to conduct comprehensive transboundary environmental assessments, have ignored the need for free, prior, and informed consent (FPIC), and have used a flawed amendment process to expand mine operations without adequate scrutiny. The submission introduces a new claim regarding the violation of the right to a healthy environment and requests that the Commission investigate these claims and recommend the suspension of mine authorizations until transboundary harms are addressed.

The author argues that food waste is a critical but often overlooked component of climate action plans, noting that food waste in the US generates 170 million metric tons of CO2 emissions annually. The document highlights the EPA's $4.6 billion CPRG program as a key funding opportunity for governments to implement scalable waste reduction projects, citing California's Senate Bill 1383 as a model for curbing organic waste in landfills.

The Montana District Court ruled in favor of sixteen youth claimants, finding that the 'Climate Change Exception' in the Montana Environmental Policy Act (MEPA) is unconstitutional because it violates the claimants' fundamental right to a clean and healthful environment. The court determined that Montana's greenhouse gas emissions, linked to the MEPA limitation, are a substantial factor in causing climate impacts in the state. While the court granted declaratory relief, it dismissed claims for injunctive relief, such as a remedial climate plan, citing the political question doctrine.