Access a range of climate-related reports issued by government agencies and scientific organizations. Browse the reports listed below, or filter by scope, content, or focus in the boxes above. To expand your results, click the Clear Filters link.
This Drought Guide, developed through the interagency National Drought Resilience Partnership, can be used to anticipate and prepare for the consequences of drought on infrastructure services. This resource directs users to the National Integrated Drought Information System (drought.gov) and other agencies’ information and decision tools.
The Working Group II contribution to the IPCC Sixth Assessment Report assesses the impacts of climate change, looking at ecosystems, biodiversity, and human communities at global and regional levels. It also reviews vulnerabilities and the capacities and limits of the natural world and human societies to adapt to climate change.
The Vermont Climate Action Plan aims to dramatically reduce greenhouse gas emissions, help protect Vermont communities and landscapes from the greatest risks of climate change, and create new clean energy industry and jobs. The Climate Action Plan includes strategies to:
- Reduce greenhouse gas emissions from the transportation, building, regulated utility, industrial, commercial, and agricultural sectors;
- Encourage smart growth and related strategies;
- Achieve long-term sequestration and storage of carbon and promote best management practices to achieve climate mitigation, adaption, and resilience on natural working lands;
- Achieve net zero emissions by 2050 across all sectors;
- Reduce energy burdens for rural and marginalized communities;
- Limit the use of chemicals, substances, or products that contribute to climate change; and
- Build and encourage climate adaptation and resilience of Vermont communities and natural systems.
The Climate Action Plan serves as a guide for the Vermont Legislature in setting policy that supports climate change solutions for Vermonters and Vermont's landscape.
A range of resources documenting report preparation are available in the Climate Action Plan Appendices.
In 2020, New York City's Mayor’s Office of Resiliency initiated an engagement process, called the Climate Knowledge Exchange, to align research with climate resiliency and adaptation needs. This report is the first in an annual series that will maintain a public agenda for climate research in NYC. The report communicates NYC’s research needs to external partners, including academic scientists, federal researchers, philanthropic foundations, and community organizations. This in turn will catalyze new and creative partnerships to develop credible and actionable research products that address NYC’s most pressing climate challenges. The report includes the engagement methodology and survey text used with various agencies.
To plan for future sea level rise, Miami-Dade County relies on the 2019 Unified Sea Level Rise Projection for Southeast Florida developed by the Southeast Florida Regional Climate Change Compact. These projections are revised every five years to ensure they reflect the best available science. Based on these consensus projections, they expect sea levels to be approximately two feet higher 40 years from 2019 levels and continue rising beyond that.
This report's subtitle is Managing the Uncertainty of Future Sea Level Change and Extreme Water Levels for Department of Defence Coastal Sites Worldwide.
From the Executive Summary: Global change, including climate change, poses unique challenges to the Department of Defense (DoD). In particular, coastal military sites, and their associated natural and built infrastructure, operations, and readiness capabilities, are vulnerable to the impacts of rising global sea level and local extreme water level (EWL) events. This report and its accompanying scenario database provide regionalized sea level and EWL scenarios for three future time horizons (2035, 2065, and 2100) for 1,774 DoD sites worldwide. The global nature of DoD’s presence required a broad and comprehensive approach that to this point has been lacking in similar efforts.
Hotter weather, stronger typhoons, coral reef death, and physical and mental health risks are among the major challenges detailed in this report on climate change in the Commonwealth of the Northern Mariana Islands (CNMI). Threatened resources include high-value coastal infrastructure and the millions of dollars that ocean ecosystems add to the CNMI economy annually. This report provides guidance for decision makers seeking to better understand the implications of climate variability and change for CNMI and its communities and identifies the additional information and research needed to support responses that enhance resilience and help CNMI to withstand the changes to come.
This series of BAMS special reports presents assessments of how human-caused climate change may have affected the strength and likelihood of individual extreme events. The series has been published annually since 2011.
The ninth edition of the report, Explaining Extreme Events in 2019 from a Climate Perspective, presents 15 new peer-reviewed analyses of extreme weather across four continents and one sea during 2019. It features the research of 77 scientists from 7 countries looking at both historical observations and model simulations to determine whether and by how much climate change may have influenced particular extreme events.
This report highlights the equity implications of sea level rise in the first nationwide assessment of risk to the country’s affordable housing supply. As climate change causes sea levels to rise, the number of affordable housing units at risk of coastal flooding is projected to more than triple to nearly 25,000 nationwide over the next 30 years.
Climate change is already impacting or is anticipated to impact nearly every facet of the economy, including infrastructure, agriculture, residential and commercial property, human health, and labor productivity. Over time, if significant action is not taken to check rising global average temperatures, climate change impacts could impair the productive capacity of the economy and undermine its ability to generate employment, income, and opportunity. This reality poses complex risks for the U.S. financial system.
This report is a scientific assessment of historical climate trends and potential future climate change in North Carolina under increased greenhouse gas concentrations. The report includes an overview of the physical science of climate change, detailed information on observed and projected changes in temperature and precipitation averages and extremes, hurricanes and other storms, sea level, and other relevant climate metrics. Findings are presented for both the state as a whole and for each of three regions in the state: the Coastal Plain, the Piedmont, and the Western Mountains. The report also includes chapters on sea level rise, trends involving interactions of multiple aspects of the climate system (including inland flooding, wildfire, forest ecosystem changes, urban heat island effects, and air pollution), and findings relevant to engineering design standards.
The heavy precipitation and flooding of 2019 was one for the history books. This report looks back at the major climate events and impacts of 2019 in the Missouri River Basin.
Arctic ecosystems and communities are increasingly at risk due to continued warming and declining sea ice. The Arctic marine ecosystem and the communities that depend upon it continue to experience unprecedented changes as a result of warming air temperatures, declining sea ice, and warming waters. This 2019 update to the Arctic Report Card draws particular attention to the Bering Sea region, where declining winter sea ice exemplifies the potential for sudden and extreme change. Indigenous Elders from the Bering Sea region offer their experiences of living at the forefront of climate change.
The world continues to emit greenhouse gases while the planet's climate is changing faster than ever. This report intends to take up the latest and most essential scientific findings published in an extraordinary year—the climate science year in review.
The Fish and Wildlife Relevancy Roadmap is a practical guide that state and provincial fish and wildlife conservation agencies can use to overcome barriers to broader relevance, public engagement, and support. The roadmap is not prescriptive and provides multiple pathways to respond to the diverse social, economic, demographic, political, and environmental changes that states and provinces face. The Roadmap was developed by a team of over 60 leaders from state, federal, provincial, and private conservation organizations and others with an interest in conservation.
Alaska has recently experienced profound environmental change related to extreme weather events and deviations from the historical climate. Sustained warmth, sea ice loss, coastal flooding, river flooding, and major ecosystem changes have impacted the daily lives of Alaskans around the state. The International Arctic Research Center and the University of Alaska Fairbanks have documented these changes, and are providing individuals, Alaska businesses, communities, government, and others with the resources they need to better assess impacts and develop adaptation strategies.
The Beloved Community is a vision for our future where all people share equally in the wealth and bounty of the earth, where we protect its abundance, diversity, and beauty for future generations. In this vision of liberation, racism, exploitation, and domination are replaced by democracy, cooperation, interdependence, and love. To get there, we pursue transformative, systems-change solutions. What do we mean by this? The root causes of the problems our communities face—like climate change, racism, and economic inequality—are all deeply connected. Since the problems are connected, so are the solutions. The purpose of this toolkit is to put us on the path toward achieving this vision. Through the context of building equity and resilience into climate adaptation planning, we introduce strategies to transform our communities and, by extension, society. Our ultimate goal is to create lasting and systemic change. At the same time, we recognize the urgency of the issues our communities face and the need to take action now. That is why we pursue change at every scale—from policy changes to community-based projects—to institute the transformative change we need to uphold our vision of the beloved community.
The guidance provided by this report is designed to help all communities create disaster debris management plans. It assists communities in planning for natural disaster debris before disasters—such as hurricanes, earthquakes, tornadoes, volcanoes, floods, wildfires, and winter storms—occur by providing useful, relevant information intended to increase community preparedness and resiliency. The report includes recommended components of a debris management plan, suggested management options for various natural disaster debris streams, a collection of case studies that highlights how several communities prepared for and managed debris generated by recent natural disasters, resources to consult in planning for natural disasters, and the EPA’s recommended pre-incident planning process to help prepare communities for effective disaster debris management.
This plan represents the efforts of the State of Minnesota in fulfilling the responsibility for hazard mitigation planning. The purpose of this plan is to identify the state’s major hazards, assess the vulnerability to those hazards, and take steps to reduce vulnerability using the technical and program resources of Minnesota agencies. The process has included consideration of current and expected future impacts from Minnesota’s already changing climate, as relevant to hazard mitigation planning. The plan identifies goals and recommends actions and initiatives for the state government to adapt to, reduce, and/or prevent injury and damage from hazardous events.
Climate change is causing significant and far-reaching impacts on the Great Lakes and the Great Lakes region. This report, from 18 leading scientists and experts from Midwest and Canadian universities and research institutions, draws on the array of existing research to assess how the shifting global climate impacts the unique Great Lakes region.
This report offers the first national assessment of the scope and consequences of urban flooding in the United States. Researchers analyzed available data concerning urban flooding, surveyed municipal flood and stormwater managers, and met with professionals whose disciplines intersect with urban flooding at the local, state, and national level. The research team's findings affirm that urban flooding is a national and significant source of economic loss, social disruption, and housing inequality. This report presents the full results of the study, addresses governance issues that affect urban flood risk reduction, examines critical challenges, and offers recommendations for actions.
The Global Change Research Act of 1990 mandates that the U.S. Global Change Research Program deliver a report to Congress and the President no less than every four years that “1) integrates, evaluates, and interprets the findings of the Program…; 2) analyzes the effects of global change on the natural environment, agriculture, energy production and use, land and water resources, transportation, human health and welfare, human social systems, and biological diversity; and 3) analyzes current trends in global change, both human-induced and natural, and projects major trends for the subsequent 25 to 100 years.” The Fourth National Climate Assessment (NCA4) fulfills that mandate in two volumes. This report, Volume II, draws on the foundational science described in Volume I, the Climate Science Special Report. Volume II focuses on the human welfare, societal, and environmental elements of climate change and variability for 10 regions and 18 national topics, with particular attention paid to observed and projected risks, impacts, consideration of risk reduction, and implications under different mitigation pathways. Where possible, NCA4 Volume II provides examples of actions underway in communities across the United States to reduce the risks associated with climate change, increase resilience, and improve livelihoods. This assessment was written to help inform decision makers, utility and natural resource managers, public health officials, emergency planners, and other stakeholders by providing a thorough examination of the effects of climate change on the United States.
Shorelines with high boat wake and wave energy face especially rapid erosion and habitat loss. A new living shoreline design from researchers at the University of Florida and the Guana Tolomato Matanzas Reserve that uses gabion-breaks has proven successful in high-energy environments. The gabion-break design uses two lines of defense to reduce erosion along the marsh edge—porous wooden breakwalls placed in front of structures that will foster oyster growth. This manual for restoration practitioners describes a collaborative research project that tested gabion-breaks along the Atlantic Intracoastal Waterway in northeast Florida. It discusses the project’s results and details the steps to use gabion-breaks, including planning, design, maintenance, monitoring, and costs.
This special report from the Intergovernmental Panel on Climate change describes the impacts of global warming of 1.5 °C above pre-industrial levels. The report also describes potential global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty.
The Arctic shows no sign of returning to reliably frozen region of recent past decades. Despite relatively cool summer temperatures, observations in 2017 continue to indicate that the Arctic environmental system has reached a "new normal," characterized by long-term losses in the extent and thickness of the sea ice cover, the extent and duration of the winter snow cover and the mass of ice in the Greenland Ice Sheet and Arctic glaciers, and warming sea surface and permafrost temperatures. Issued annually since 2006, the Arctic Report Card is a timely and peer-reviewed source for clear, reliable, and concise environmental information on the current state of different components of the Arctic environmental system relative to historical records. The report is intended for a wide audience, including scientists, teachers, students, decision makers, and the general public interested in the Arctic environment and science.
This BAMS special report presents assessments of how human-caused climate change may have affected the strength and likelihood of individual extreme events. This sixth edition of explaining extreme events of the previous year (2016) from a climate perspective is the first of these reports to find that some extreme events were not possible in a pre-industrial climate.
As a key part of the Fourth National Climate Assessment (NCA4), the U.S. Global Change Research Program (USGCRP) oversaw the production of this stand-alone report of the state of science relating to climate change and its physical impacts. The Climate Science Special Report (CSSR) is designed to be an authoritative assessment of the science of climate change, with a focus on the United States, to serve as the foundation for efforts to assess climate-related risks and inform decision making about responses.
As Volume 1 of NCA4, CSSR serves several purposes, including providing (1) an updated and detailed analysis of the findings of how climate change is affecting weather and climate across the United States; (2) an executive summary and 15 chapters that provide the basis for the discussion of climate science found in the second volume of NCA4; and (3) foundational information and projections for climate change, including extremes, to improve “end-to-end” consistency in sectoral, regional, and resilience analyses within the second volume. CSSR integrates and evaluates the findings on climate science and discusses the uncertainties associated with these findings. It analyzes current trends in climate change, both human-induced and natural, and projects major trends to the end of this century. As an assessment and analysis of the science, CSSR provides important input to the development of other parts of NCA4, and their primary focus on the human welfare, societal, economic and environmental elements of climate change. Much of the underlying report is written at a level more appropriate for a scientific audience, though the Executive Summary is intended to be accessible to a broader audience.
This report focuses on identifying, developing, and implementing strategies to increase the power system’s resilience in the face of events that can cause large-area, long-duration outages: blackouts that extend over multiple service areas and last several days or longer. Resilience is not just about lessening the likelihood that these outages will occur; it is also about limiting the scope and impact of outages when they do occur, restoring power rapidly afterwards, and learning from these experiences to better deal with events in the future.
This Technical Report presents results from a large set of sectoral impact models that quantify and monetize climate change impacts in the U.S., with a primary focus on the contiguous U.S., under moderate and severe future climates. The report summarizes and communicates the results of the second phase of quantitative sectoral impacts analysis under the Climate Change Impacts and Risk Analysis (CIRA) project. The effort is intended to inform the fourth National Climate Assessment (NCA4) of the U.S. Global Change Research Program (USGCRP). The goal of this work is to estimate climate change impacts and economic damages to multiple U.S. sectors (e.g., human health, infrastructure, and water resources) under different scenarios. Though this report does not make policy recommendations, it is designed to inform strategies to enhance resiliency and protect human health, investments, and livelihoods.
This guidebook results from the culmination of a year of dialogue among diverse stakeholders in southeastern Connecticut who defined challenges and solutions from extreme weather, climate change, and shifting social and economic conditions. Participants included representatives from nine municipalities, public and private utilities, public health departments, chambers of commerce, major employers, conservation organizations, academic institutions, community non-profits, and state agencies, among others. The dialogue captured six themed planning sectors (water, food, ecosystem services, transportation, energy, and regional economy) in a process that used surface and integrated solutions to address singular and multiple challenges across planning sectors. The guidebook provides a quick reference resource to help shape and inform actions that will advance a regional resilience framework for southeastern Connecticut; an accompanying Summary of Findings captures the project's final outcomes and conclusions, as well as providing a comprehensive account of the objectives, process, and details.
This report summarizes findings from a workshop held in El Paso, Texas, on July 13, 2016. The El Paso-Juárez-Las Cruces region is home to approximately 2.4 million people, most of whom are living in or near the urban centers of Ciudad Juárez (Chihuahua), El Paso, and Las Cruces (New Mexico). These cities share characteristics, such as a high proportion of residents of Hispanic origin, median income below the U.S. national average, and a range of climate-related environmental issues that include drought, flooding, air pollution, dust storms, and frequent occurrences of extremely high temperatures during the late spring and early summer. With hotter temperatures and more frequent and persistent heat waves projected for the El Paso-Juárez-Las Cruces region, it is critical to develop more robust systems of institutions, social learning, and partnerships to understand risks and strengthen public health resilience.
New U.S. regional sea level scenarios developed by NOAA and its partners will give coastal communities better, more localized data to help them plan for and adapt to the risk of rising sea levels to their economies and infrastructure.
This guide describes how Climate Central's Surging Seas web tool can be used to support activities that receive points within the Federal Emergency Management Agency's (FEMA) Community Rating System (CRS) program. It is informed by conversations with local CRS coordinators and implementers, and with FEMA CRS representatives. The guide provides step-by-step instructions on how to access and obtain information and downloads from the Surging Seas tool that could be utilized within specific CRS activities in FEMA’s Coordinator’s Manual (FIA-15/2013).
The Office of Management and Budget (OMB), in collaboration with the Council of Economic Advisers (CEA), has attempted to quantify the fiscal risks posed by climate change for the Federal Government. To date, this effort has yielded two primary conclusions: first, that our current understanding of the fiscal risks of climate change is nascent, limited in scope, and subject to significant uncertainty; and second, that the evidence available thus far indicates the fiscal risks to the Federal Government could be very significant over the course of this century without ambitious action to reduce greenhouse gas emissions (GHGs) and adapt our communities to a changing climate.
This report outlines the contours of fiscal risk through five program-specific assessments: crop insurance, health care, wildfire suppression, hurricane-related disaster relief, and Federal facility flood risk. These programs were assessed because they are directly influenced by climate change, they have strong links to the Federal Budget, and quantitative scientific and economic models regarding the likely magnitude of impacts were available. This report also considers potential impacts to Federal revenues.
This report documents that the average temperature in 2015 was over one degree higher than pre-industrial times and that the period 2011–2015 was the warmest five-year period on record, consistent with established warming trends. The report further documents that in 2015 another milestone was reached, with globally averaged CO2 levels of 400 parts per million (ppm). The year 2016 is on track to be even warmer and will be the first year in which CO2 at the Mauna Loa Observatory remains above 400 ppm all year, and for many generations to come.
The probability of extreme climate events since 2011, especially those involving extreme high temperatures, has been substantially increased by climate change, often by a factor of 10 or more. The single most significant event in humanitarian terms, with over 250,000 lives lost, was the 2011–2012 famine in the Horn of Africa, where drought was a major factor.
This Web toolkit raises airport operator awareness about vulnerabilities caused by significant weather events. The toolkit helps airports develop more robust contingency and recovery plans, in addition to their airport emergency plans. The toolkit focuses on events that are “rare but plausible”; that is, events that may have happened in the distant past, or in adjacent geographic areas, but are not common event types at the airport itself, and therefore may not be in the forefront of the airport managers’ minds.
