Search Climate Insights Directory

From June 18-20, 2024, a major to extreme heat event is forecast for the eastern half of the U.S., affecting over 25 million people. The event is characterized by record-level high temperatures in major cities and elevated nighttime temperatures. Climate Central's Climate Shift Index (CSI) indicates that human-caused climate change has made this heat at least four times more likely in several states, including West Virginia, Ohio, and Indiana.

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 Union of Concerned Scientists (UCS) recommends that Maine's offshore wind procurement process prioritize larger nameplate capacities to maximize grid reliability. Based on an analysis of winter seasons from 2000 to 2022, UCS found that offshore wind fleets of 1500 MW, 4000 MW, and 8000 MW could substantially reduce the number of days the New England grid faces elevated energy shortfall risk. The document argues that offshore wind is an ideal solution for winter reliability because its output typically increases during cold snaps, unlike fossil fuel supplies which are subject to global market volatility and import constraints.

An analysis of 476 weather stations from 1973 to 2023 shows that fire weather seasons are lengthening and intensifying across the contiguous United States, with the most significant increases occurring in the West. While the East has seen more modest increases, both regions are experiencing a notable rise in fire weather days during the spring. The Southwest has seen the most dramatic growth, with some areas experiencing fire weather twice as often as they did 50 years ago.

Climate change is increasing the intensity of extreme precipitation across the U.S., with the Northeast and Midwest seeing the largest increases since 1958. Under 2°C of global warming, 85% of U.S. counties are projected to experience a 10% or higher increase in precipitation on the heaviest 1% of days. This intensification contributes to flash flooding and landslides, disproportionately affecting racial minorities and those in mobile homes, particularly in the South and rural areas. Between 1988 and 2021, warming-induced rainfall intensification caused an estimated $84 billion in inland flood damages.

The document argues that climate change is a critical electoral issue in the 2024 US elections and urges journalists to move beyond 'red-blue' political binaries to report on the scientific consensus and local impacts. It provides specific questioning frameworks for candidates, methods for debunking common climate myths, and suggestions for localizing climate stories across sectors like infrastructure, housing, and energy. The guide emphasizes that reporting on the climate crisis is a matter of professional journalism rather than activism, citing the role of the press in holding power accountable during historical crises.

The document advises journalists to treat climate change as a factual urgency rather than a partisan debate, urging them to proactively question candidates on specific plans for emissions reduction and infrastructure resilience. It highlights a disconnect between political discourse and public sentiment, noting that 62% of registered US voters prefer candidates who support climate action. The guide also provides a framework for debunking common climate myths and suggests local reporting angles such as the impact of the Inflation Reduction Act, green job programs, and climate-driven insurance rate increases.

The U.S. clean energy sector saw record growth in 2023, particularly in solar installations and EV sales, supported by the Inflation Reduction Act and Bipartisan Infrastructure Law. However, the transition faces significant headwinds from rising interest rates, supply chain shortages for transformers, and a lagging transmission system. To meet 2035 carbon-free electricity goals, annual renewable installation rates must nearly double, and transmission capacity may need to double or triple.

New England's energy transition requires a massive shift from fossil fuel reliance to a decarbonized grid, with peak electricity demand projected to double to 55 GW by 2050. The report argues for a 'clean energy portfolio approach' combining solar, offshore wind, energy storage, and interregional transmission to ensure reliability and affordability. It highlights significant sociopolitical barriers, including community opposition and outdated permitting processes, and recommends comprehensive state-level reforms and proactive community engagement to accelerate deployment.

The report details the environmental and economic risks Maine faces due to climate change, including sea level rise, extreme precipitation, drought, and rising temperatures. It quantifies risks such as the potential inundation of 3,700 homes and the threat to a $600 million fishing industry, while providing comprehensive lists of necessary infrastructure and policy adaptations to mitigate these costs.

The document outlines various real-world examples and tools that State Energy Offices can use to implement IRA Home Energy Rebates. It highlights strategies for equity mapping, workforce analysis, consumer outreach, and contractor certification. Key examples include Greenlink Analytics for equity data, the Love Electric campaign in Colorado for consumer awareness, and NYSERDA's Clean Heat Connect for supply chain alignment. The guide emphasizes the importance of people-centered support, weatherization integration, and comprehensive contractor training to ensure program success and equitable outcomes.

As of June 2023, there are 5,982 committed electric school buses across 914 U.S. school districts or private fleet operators. Adoption is heavily driven by the EPA's Clean School Bus Rebate Program, which funded 39% of all committed buses. While California leads in total numbers, adoption is becoming more geographically distributed, with 49 states now having commitments. The report finds that adoption is occurring equitably, with a majority of buses located in low-income districts and areas with high air pollution. Type C buses are the most common, making up 62.5% of commitments.

The report identifies non-financial barriers—specifically project development and market uncertainty risks—as the primary constraints on U.S. clean energy deployment. It recommends a portfolio of policies to reduce these risks, including reforming interconnection queues, pre-zoning land for renewables, streamlining permitting processes, and establishing longer-term cost-recovery schedules for power sales.

Analysis of 241 U.S. locations from 1970 to 2022 shows that fall temperatures have increased by an average of 2.4°F in 232 cities, with the most intense warming occurring in the Southwest. This trend is characterized by an increase in above-normal fall days, which prolongs risks related to heat-related illness, wildfires, and allergies, while increasing energy demand for cooling.

The U.S. electric school bus (ESB) market is expanding, driven by the EPA's Clean School Bus Program and state-level mandates. As of December 2022, 895 districts had committed to 5,612 ESBs. While upfront costs remain three to four times higher than diesel buses, ESBs offer lower operational costs, zero tailpipe emissions, and potential grid resilience through bidirectional charging. The market currently features 24 models across Type A, C, and D buses, with a growing emphasis on repowering existing fleets to reduce costs and waste. Successful deployment requires coordinated planning between districts, utilities, and manufacturers to manage charging infrastructure and specialized maintenance training.

The submission argues that PFAS should be regulated as a class to prevent 'regrettable substitution' and protect vulnerable populations, including Indigenous peoples and firefighters. The authors contend that the current Draft state of PFAS report underestimates the class size and that the proposed Risk Management Scope (RMS) is insufficient because it lacks a commitment to prohibiting non-essential uses. They recommend fast-tracking the listing of PFAS as toxic substances under CEPA Part 1 of Schedule 1, citing widespread contamination in the Canadian Arctic, the Great Lakes, and human blood.

The report evaluates the potential for offshore carbon capture and storage (CCS) in the US mid-Atlantic to compensate for limited onshore capacity. Using the SimCCS modeling toolset, the study identifies 199 facilities across 15 industry sectors with a total of 31.47 Mt of annual capturable CO2. It finds that while offshore storage capacity is vast—estimated at 621,221 MtCO2 across 125 candidate sites—the costs are significantly higher than onshore benchmarks, ranging from 95.5 to 147.9 $/tCO2. This cost disparity is primarily driven by offshore pipeline installation and storage expenses. The analysis suggests that capturing the full 31.47 MtCO2 would require a 7,789 km branched pipeline network and that emission prices between $95.5 and $103.5 per tonne could incentivize initial capture efforts.

Colorado faces a housing shortage requiring approximately 325,000 units to stabilize prices, which currently drives suburban sprawl and increases greenhouse gas emissions. The document proposes transit-oriented development (TOD) and 'missing middle housing' as solutions to reduce vehicle miles traveled and land consumption. Specifically, RMI estimates that upzoning and infilling along transit corridors in the Denver metro could reduce per-capita vehicle miles traveled by 13% and greenhouse gas emissions by 8% by 2040.

The Agricultural Management Assistance (AMA) program provides financial aid to agricultural producers in 16 specific US states to manage financial risk through conservation, marketing, and crop diversification. Administered by the NRCS, AMS, and RMA, the program is permanently authorized at $10 million per fiscal year and covers up to 75 percent of the cost for conservation practices like agroforestry and cover crops to mitigate climate change.

As of September 2022, there are 13,053 committed electric school buses in the US, spanning 483 school districts across 39 states. California leads adoption, and the largest funding source is California's Hybrid and Zero-Emission Truck and Bus Voucher Incentive Program. While adoption is high in areas with significant air pollution and among communities of color, the highest number of buses are concentrated in districts with the lowest percentages of low-income households.