Search Climate Insights Directory
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Hurricane Intensity and Impacts
The document examines how human-caused climate change and warming sea surface temperatures are increasing the proportion of intense tropical cyclones and the frequency of rapid intensification events. It highlights that tropical cyclones are the costliest weather disasters in the U.S., with 73% of billion-dollar storms since 1980 having undergone rapid intensification. The text notes that while landfalling hurricane frequency in the continental U.S. remained stable from 1900-2017, economic losses have risen due to increased population and wealth along the Gulf and East Coasts.
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Document type: Fact sheet
PRIVATE EQUITY’S DIRTY DOZEN
The report profiles 12 private equity firms—including Blackstone, Carlyle, and KKR—detailing their substantial portfolios of oil, gas, and coal assets. It argues that these firms fuel the climate crisis and environmental injustice while their executives accumulate immense wealth and social prestige. The document provides specific examples of environmental violations, such as oil spills and methane leaks, and highlights the firms' tendency to avoid global climate pledges like those made at COP26.
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Document type: Report
Scaling up the deployment of Integrated Utility Services (IUS) to support energy sector transformation in the Caribbean (Phase I)
The Caribbean Development Bank (CDB) is seeking project preparation funding to design a programme that transforms electric utilities in Barbados, Belize, Guyana, and Jamaica into 'utility-based ESCOs'. By implementing the Integrated Utility Services (IUS) model, utilities will provide on-bill financing for customers to install distributed renewable energy (RE) and energy efficiency (EE) measures, reducing the financial risk for end-users and decreasing dependence on imported fossil fuels. The programme aims to reduce at least 400,000 tCO2eq and provide adaptation benefits to at least 80,000 direct beneficiaries.
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Document type: Report
Federal Resilience Programs: North American Wetlands Conservation Act
The North American Wetlands Conservation Act (NAWCA), established in 1989, is a federal grant program dedicated to protecting and restoring wetland habitats for migratory birds in the United States, Mexico, and Canada. Wetlands provide critical ecosystem services, including storm protection valued at $23.2 billion annually in the U.S., carbon sequestration, and wave energy absorption. Since its inception, NAWCA has funded over 3,000 projects, protecting more than 32 million acres of wetlands and leveraging $1.6 billion in federal funds into over $4.6 billion in matching grants. Recent funding was reauthorized through the America’s Conservation Enhancement Act of 2020, with annual funding of up to $60 million through Fiscal Year 2025.
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Document type: Fact sheet
A RESILIENT FUTURE FOR COASTAL COMMUNITIES
The report outlines 30 federal policy recommendations to improve coastal resilience in the United States, emphasizing community-led planning, nature-based solutions, and equitable financing. It argues that federal policies must shift from relying on past climate data to anticipating future conditions, particularly for infrastructure and land use. Key priorities include integrating climate justice, supporting tribal sovereignty in adaptation planning, and reforming benefit-cost analysis tools to better value social and environmental outcomes. The document also advocates for the creation of a national 'green bank' and a federal climate heritage coordination office to manage the intersection of cultural preservation and climate change.
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Document type: Report
Resilience Initiatives in Puerto Rico and the U.S. Virgin Islands
The briefing discusses strategies for enhancing resilience in the U.S. Caribbean, focusing on Puerto Rico's transition toward a renewable energy economy centered on rooftop solar and the U.S. Virgin Islands' efforts to integrate natural infrastructure into hazard mitigation plans.
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Document type: Briefing
Federal Support and Local Action
The document is a transcript of a briefing featuring experts from the U.S. House Committee on Natural Resources and the Puerto Rico Department of Natural and Environmental Resources. It examines the devastating impacts of Hurricanes Irma and Maria, as well as recent earthquakes in Puerto Rico, highlighting the vulnerability of the electric grid and coastal infrastructure. The speakers argue that while Congress has approved significant funding for recovery and resilience, bureaucratic delays in federal agencies like HUD and FEMA have stalled the disbursement of these resources. The briefing emphasizes the effectiveness of nature-based solutions, such as coral reef restoration, for wave attenuation and coastal protection, while noting that traditional cost-benefit analysis tools often favor short-term returns over long-term resilient infrastructure.
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Document type: Briefing
Resilient Housing and Communities
The document features a discussion on the critical need for resilient housing and community-based energy solutions in island territories following disasters like Hurricane Maria. Panelists emphasize that resilience is achieved through 'community strength' and self-sufficiency rather than dependency on centralized government systems. Key strategies include the deployment of distributed solar energy to create 'energy oases' for critical infrastructure and the use of the 'Keep Safe' guide to implement multi-risk mitigation in housing design. The discussion highlights the intersection of climate risk, housing insecurity, and the necessity of local workforce development to maintain resilient infrastructure.
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Document type: Briefing
Sustainable, Democratic Energy and Public Health
The document features presentations by Ruth Santiago and Dr. Greg Guannel on enhancing coastal resilience in Puerto Rico and the U.S. Virgin Islands. Santiago argues against rebuilding the existing fossil-fuel-based power grid in Puerto Rico, proposing instead a transition to 'energy democracy' via rooftop solar and community-led energy systems. Dr. Guannel describes the update of the U.S. Virgin Islands' Hazard Mitigation Plan, emphasizing that resilience requires a holistic approach that combines physical infrastructure with social networks and natural systems, such as mangroves and aquifers, to protect the tourism-based economy and public health.
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Document type: Briefing
Solar Under Storm Part II
The report analyzes rooftop solar PV failures following major hurricanes in the Caribbean (2017-2019) to establish engineering and installation best practices. It identifies critical failure modes, such as top-down clip failures and corner overturning, and recommends specific technical mitigations including vibration-resistant hardware, mechanical attachments over purely ballasted systems, and strict adherence to roof edge setbacks. The authors estimate that implementing these resilience measures increases engineering, procurement, and construction (EPC) costs by approximately 5%.
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Document type: Report
Congressional Action on Resilient Infrastructure: Areas of Progress and Future Needs
The document details how the 115th Congress integrated resilience into various sectors through legislation like the Disaster Recovery Reform Act, the Water Resources Development Act, and the National Defense Authorization Act. It highlights the rising economic costs of inaction, noting that 2017 alone saw $312.7 billion in disaster damages. The text emphasizes the shift toward pre-disaster mitigation, nature-based infrastructure, and the need for the 116th Congress to address energy grid resilience and National Flood Insurance Program reform.
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Document type: Fact sheet
SOLAR UNDER STORM
The report analyzes the failure and survival of solar PV systems during Hurricanes Irma and Maria in the Caribbean to establish design and specification standards for high-wind environments. It identifies root causes of failure—such as undersized racking, inadequate bolting, and the use of T-clamps—and recommends high-load modules, through-bolting, and dual-post foundations. The authors advise against using trackers in Category 4 or higher wind zones and emphasize the need for site-specific structural engineering and collaboration between stakeholders and suppliers to develop Category 5-resistant hardware.
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Document type: Report
CIEL statement on US AGs announcement of Climate Action Coalition and investigation into fossil fuel companies
CIEL President Carroll Muffett supports the collaboration of US state Attorneys General in investigating fossil fuel companies for climate deception, noting that five jurisdictions—New York, California, Maryland, Massachusetts, and the US Virgin Islands—have confirmed investigations into Exxon.
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Document type: Statement
ENERGY EFFICIENCY AND NET-ZERO BUILDINGS: GSA & RMI ANSWER THE CALL
The document outlines the GSA's National Deep Energy Retrofit (NDER) Program and provides a framework for achieving energy savings of 50% or more in federal buildings. It highlights the effectiveness of bundling energy conservation measures (ECMs), engaging diverse stakeholders, and utilizing a 'technical potential' tool to identify aggressive energy goals. Case studies, such as the Almeric Christian Federal Building, demonstrate the feasibility of net-zero energy through the ESPC process, while data analysis shows that NDER projects achieved an average of 38% energy savings, more than double the 18.5% average of non-NDER federal ESPC projects.
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Document type: Executive summary
Global Climate Change Impacts in the United States
The document details the risks posed by rising temperatures and sea-level rise in the Southeast US, highlighting threats to energy and transportation infrastructure, agricultural productivity, and native ecosystems.
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Document type: Fact sheet
Water Efficiency: The Next Generation
The report examines a range of high-efficiency fixtures and systems to reduce residential water use. It highlights the potential of dual-flush toilets, low-flow showerheads and faucets, graywater recycling, composting toilets, and rainwater collection. The author argues that while the 1992 U.S. standards significantly reduced per-capita indoor water use, further gains can be achieved through technology and native landscaping, while raising broader questions about sustainability and growth.
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Document type: Report
Technical Note for a Dataset of U.S. School Bus Fleets
The World Resources Institute (WRI) created a dataset of U.S. school bus fleets by submitting records requests to state governments between March and November 2022. The data includes details such as model year, fuel type, manufacturer, seating capacity, and ownership model, intended for use in estimating greenhouse gas emission reductions, planning grid upgrades for electrification, and identifying highly polluting buses. The dataset is limited by missing data from four states and all U.S. territories, as well as structural differences in how states report data.
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Document type: Research paper
Widespread Demand for the Clean School Bus Program
The U.S. Environmental Protection Agency's Clean School Bus Program (CSBP) has funded over 8,000 electric school buses across 48 states, four territories, Washington, DC, and 65 Tribal school districts, with over 2,000 already delivered. Electric school buses are presented as a viable alternative to diesel-powered buses, offering health benefits by eliminating tailpipe emissions and saving districts an average of $100,000 in lifetime fuel and maintenance costs per bus. Additionally, the CSBP is credited with spurring a manufacturing boom, supporting 21 facilities across 13 states and creating thousands of jobs, with an estimate that each electric vehicle manufacturing job can create three additional local third-party jobs.
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Document type: Fact sheet
Prioritizing Equity in Providing Technical Assistance to Underserved School Districts under WRI’s Electric School Bus Initiative
The World Resources Institute (WRI) has established a list of 1,508 Priority Outreach Districts across the United States to prioritize free, deep technical assistance for school bus electrification. These districts are selected based on criteria related to income, race, air pollution levels, and tribal status to address systemic inequities in air pollution exposure. WRI provides these districts with tailored support covering road-mapping, procurement, and utility coordination, while offering generalized guidance to other districts.
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Document type: Report