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.

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Published
September 2022

Published by the Puerto Rico Climate Change Council, this report presents the social and ecological vulnerabilities amid changing climate conditions in Puerto Rico from 2014-2021. Each of the four working groups provide an assessment of:

  • Geophysical and Chemical Scientific Knowledge
  • Ecology and Biodiversity
  • Society and Economy
  • Communications and Outreach
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Published
September 2021

For the six states of the U.S. Southwest (Arizona, California, Colorado, Nevada, New Mexico, and Utah)i , January 2020 through August 2021 have been exceptional in the instrumental climate record since 1895, with the lowest total precipitation and the third-highest daily average temperatures recorded, which together imposed an unyielding, unprecedented, and costly drought. This exceptional drought punctuates a two-decade period of persistently warm and dry conditions throughout the region. 

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Published
June 2021

Climate change is expected to disrupt many aspects of life in American Sāmoa. Those who are already vulnerable—including children, the elderly, low-income families, and individuals with disabilities—are at greater risk from extreme weather and climate events. This report provides guidance for decision makers seeking to better understand the implications of climate variability and change for American Sāmoa and its communities and identifies the additional information and research needed to support responses that enhance resilience and help American Sāmoa to withstand the changes to come. This is one of a series of PIRCA reports aimed at assessing the state of knowledge about climate change indicators, impacts, and adaptive capacity of the U.S.-Affiliated Pacific Islands and the Hawaiian archipelago. Authors from the University of Hawai‘i and the East-West Center—along with 25 technical contributors from local governments, NGOs, researchers, and community groups—collaboratively developed the American Sāmoa report.

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Published
May 2021

The central recommendation of this report, submitted to the National Climate Task Force, is that the pursuit of a decade-long national conservation effort be faithful to eight core principles. These principles—which include a commitment to collaboration, support for voluntary and locally led conservation, and honoring of Tribal sovereignty and private property rights—are essential ingredients to building and maintaining broad support, enthusiasm, and trust for this effort. These principles are also indispensable to achieving durable outcomes that meaningfully improve the lives of Americans.

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Published
March 2021

This Guide is written for practitioners already using or wanting to use future climate information in their work, but who are not familiar with the underlying assumptions and choices surrounding climate data. Here, we introduce the climate model scenarios that are used to “drive” climate models forward in time. These scenarios are a combination of socioeconomic and climate forcing pathways. We summarize differences between these scenarios for the Great Lakes region to show users how their choice of model scenario affects future temperature and precipitation projections.

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Published
January 2021

Safe and secure water supplies are a continuing fundamental pursuit for life in the West. This 2021 Report provides an assessment of climate change impacts to water uses in the West and adds a new set of West-wide information based in paleohydrology. This report describes our collaborative actions taken to increase the reliability of water and power deliveries since 2016, including: science and research, planning, infrastructure sustainability, efficient hydropower production, and on-the-ground actions to meet needs for irrigation, municipalities, power, Tribes, and the environment. 

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Published
July 2020

Each region of the United States experiences climate change and its impacts on health differently, due to the regions’ location-specific climate exposures and unique societal and demographic characteristics. This document describes the various health impacts climate change will have on different regions of the United States as outlined in the Fourth National Climate Assessment (NCA4), actions taken by the CDC Climate and Health Program’s health department partners to prepare for and respond to climate change in their communities, and relevant tools and resources.

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Published
April 2020

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.

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Published
September 2019

This report and the accompanying community spotlights provide an overview of climate change science, reasons why action is needed, how science supports decision making and planning, ways to adapt to climate change and limit the severity of its effects, and how such efforts can help build resiliency. The report illustrates the ways in which science can help individuals, communities, businesses, and government agencies make informed decisions. By working together to identify solutions and bring about positive change, we can reduce the risks faced by current and future generations.

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Published
May 2019

The 2017 drought was a rapid-onset event for northeast Montana, the Dakotas, and the Canadian Prairies during the spring and summer of 2017. It was the worst drought to impact the U.S. Northern Plains in decades, and it decimated crops across the region, resulting in $2.6 billion in agricultural losses in the U.S. alone. The unique circumstances of this drought created an opportunity to evaluate and improve the efficacy of drought-related coordination, communication, and management within the region in preparation for future droughts.

Published
May 2019

The Central Council of the Tlingit and Haida Indian Tribes of Alaska (Tlingit & Haida) is a federally recognized Indian Tribe that serves 20 villages and communities stretching over 43,000 square miles within the Alaska Panhandle. The Tlingit and Haida membership is among the largest, most isolated, and most geographically dispersed of Native or Tribal populations nationwide. The region encompasses a 525-mile strip of coastline and interior waterways, bordered by Canada on the north, south, and east, with the Gulf of Alaska on the west.

The Central Council recognizes that wild salmon, berries, clams, herring, halibut, yellow cedar and other species important for subsistence, cash and culture are at risk. In response, they have released a 53-page climate change adaptation plan. The document is a roadmap for prioritizing, monitoring, and responding to threats stemming from warming air and ocean temperatures, caused by increasing levels of greenhouse gases trapped in the atmosphere.

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Published
April 2019

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.

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Published
March 2019

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.

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Published
March 2019

The frequency and severity of disasters over the last few decades have presented unprecedented challenges for communities across the United States. This report summarizes the existing portfolio of relevant or related resilience measurement efforts and notes gaps and challenges associated with them. It describes how some communities build and measure resilience, and offers four key actions that communities could take to build and measure their resilience to address gaps identified in current community resilience measurement efforts. The report also provides recommendations to the Gulf Research Program to build and measure resilience in the Gulf of Mexico region.

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Published
February 2019

This drought assessment report spans a Northern Great Plains region that includes North Dakota, South Dakota, and eastern Montana. It begins with an examination of the observed hydroclimatic conditions that led to the 2017 spring and summertime drought and places those conditions into historical context of 1895–present. The role of anthropogenic climate change is assessed through its possible impact on 2017 precipitation, temperature, and soil moisture. Finally, the report examines whether the record-low summertime precipitation that led to the 2017 drought was predicted by modern initialized forecast systems used by drought forecasters.

Cover of Fourth National Climate Assessment Volume II report
Published
November 2018

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.

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Published
November 2018

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.

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Published
March 2018

The Northern Rockies Adaptation Partnership identified climate change issues relevant to resource management in the Northern Rockies region and developed solutions intended to minimize negative effects of climate change and facilitate transition of diverse ecosystems to a warmer climate. Their vulnerability assessment emphasizes water, fisheries, wildlife, forest and rangeland vegetation and disturbance, recreation, cultural heritage, and ecosystem services, which are regarded as key resource areas for local ecosystems and communities. Resource managers used the assessment to develop a detailed list of ways to address climate change vulnerabilities through management actions. The large number of adaptation strategies and tactics, many of which are a component of current management practice, provide a pathway for slowing the rate of deleterious change in resource conditions.

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Published
March 2018

The Northern Rockies Adaptation Partnership identified climate change issues relevant to resource management in the Northern Rockies region and developed solutions intended to minimize negative effects of climate change and facilitate transition of diverse ecosystems to a warmer climate. Their vulnerability assessment emphasizes water, fisheries, wildlife, forest and rangeland vegetation and disturbance, recreation, cultural heritage, and ecosystem services, which are regarded as key resource areas for local ecosystems and communities. Resource managers used the assessment to develop a detailed list of ways to address climate change vulnerabilities through management actions. The large number of adaptation strategies and tactics, many of which are a component of current management practice, provide a pathway for slowing the rate of deleterious change in resource conditions.

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Published
January 2018

During late 2016, the National Integrated Drought Information System, the National Drought Mitigation Center, the Midwestern Regional Climate Center, and other regional partners convened four stakeholder meetings in the Midwest Drought Early Warning System. Each of these meetings included a historical drought overview and climate outlook for the region, discussion of critical drought-related needs and challenges, exploration of available tools, local drought planning and management approaches, and strategy development to improve drought early warning and resiliency in the Midwest.

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Published
June 2017

With support from the Minnesota Pollution Control Agency, the Region Nine Development Commission created this plan to assess South Central Minnesota’s vulnerability to climate change and create strategies for the region to adapt to climate change. Region Nine, working in tandem with a Climate Change Adaptation Task Force, identified eight top priority sectors to prioritize the planning process: agriculture, water, human health, energy, transportation, forests, ecosystems, business, and economy. The result of the planning process was real, actionable strategies that can be used as a guide to initiate discussions and begin a planning process in Region Nine communities.

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Published
March 2017

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. 

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Published
March 2016

The SECURE Water Report identifies climate change as a growing risk to Western water management and cites warmer temperatures, changes to precipitation, snowpack and the timing and quality of streamflow runoff across major river basins as threats to water sustainability. Water supply, quality and operations; hydropower; groundwater resources; flood control; recreation; and fish, wildlife and other ecological resources in the Western states remain at risk.

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Published
March 2016

The Arctic is changing at a startling pace. Understanding the role of freshwater in these changes—both how Arctic freshwater systems are affected by climate change, and how changes to the Arctic freshwater system will affect other environmentally relevant processes—is critical to understanding how these changes will affect the lives of people living in the Arctic and beyond. This report is intended to inform the non-expert reader about these changes to the freshwater systems in the Arctic, and their implications.

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Published
March 2016

This fact sheet presents recent climate change investigations of the U.S. Geological Survey in New England using selected recent publications that highlight the broad spectrum of expertise and commitment to understanding the relations of climate change and water resources in the region.

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Published
February 2016

Drought threatens our country’s natural resources, economy, and overall health. Increasingly, NOAA is charged with providing and improving information that helps stakeholders at all levels manage water resources in a more resilient and climate-smart manner. Working with input from farmers, ranchers, natural resource managers, and other drought-impacted industries and populations, NOAA research has worked to improve drought monitoring and prediction for better planning and mitigation of impacts.

Coer of the King County Strategic Climate Action Planåç 2015 Update
Published
November 2015

King County, Washington's Strategic Climate Action Plan sets forth strategies for reducing greenhouse gas emissions and preparing for climate change impacts.

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Published
June 2015

Many climate-related hydrologic variables in New England have changed in the past century, and many are expected to change during the next century. It is important to understand and monitor these changes because they can affect human water supply, hydroelectric power generation, transportation infrastructure, and stream and riparian ecology. This report describes a framework for hydrologic monitoring in New England by means of a climate-response network.

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Published
February 2015

The Resilient Strategies Guide for Water Utilities provides options for drinking water, wastewater, and stormwater utilities to assist them in developing plans that contain strategies that address their specific needs and priorities.

The Guide outlines the resilience planning process and helps you to identify potential strategies and promote a better understanding of resilience strategies. At the end of the Guide, you can download a report containing all of your selections and submitted information.

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Published
December 2014

In support of the Eugene-Springfield Multi-Jurisdictional Natural Hazards Mitigation Plan, staff from the cities of Eugene and Springfield, Oregon, with support from the Oregon Partnership for Disaster Resilience, convened meetings in 2014 with representatives from the following sectors: drinking water, health care and public education, electricity, transportation, food, housing, communication, stormwater, wastewater, natural systems, and public safety. The team met for six hours with each sector and, working from a standard list of questions, collected information about the adaptive capacity and sensitivity to specific hazards. This report includes sector summaries resulting from these interviews that reflect the conversations and thinking of the participants. 

Cover of the Navigating to New Shores report
Published
September 2014

Without significant changes, existing water systems will soon no longer be able to provide the services that citizens have come to expect. After six years of research, The Johnson Foundation presents a resource intended to examine challenges associated with quality, availability, and resilience of U.S. freshwater resources due to climate change, aging infrastructure, and extreme events. The report contains a set of principles to help guide the efforts of leaders in various sectors as they act upon the recommendations offered.

Cover of the Mapping the River Ahead report
Published
March 2014

As the climate changes, critical challenges face water managers, farmers, public agencies, and conservationists in the Colorado River Basin. This report by Carpe Diem West, in partnership with the Center for Natural Resources and Environmental Policy at the University of Montana, documents the concerns of some Colorado River thought leaders and their ideas about potential solutions and paths ahead.

Cover of the Southwest Assessment report
Published
May 2013

A contribution to the 2013 National Climate Assessment, this report is a summary and synthesis of the past, present, and projected future of the Southwest region’s climate. It emphasizes new information and understandings since publication of the previous national assessment in 2009.

Cover of the Strategic Climate Action Plan for King County, Washington
Published
December 2012

Preparation of the Strategic Climate Action Plan is an opportunity to take stock of progress related to climate change, to look forward, and to plan for the future.