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.

Screen capture of Report cover
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. 

Screen capture of Report cover
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. 

Report cover
Published
July 2020

The Western Governors’ Association and the U.S. Department of Agriculture are pursuing an effort to meaningfully address the large-scale infestation of invasive annual grasses on western forests and rangelands. One product of this effort is this toolkit for land managers working to combat the spread of invasive annual grasses in the West. The toolkit is comprised of a roadmap for invasive grass management, with new best management practices; case studies highlighting the application of these practices in Idaho and Wyoming; and a new geospatial data layer (which uses analytical tools to compile existing federal data) to help state and local managers assess invasive annual grasses within their jurisdictions while also offering opportunities to identify new cross-boundary collaborative projects. The roadmap and data layer are designed for easy integration into local management plans and can be tailored by state and local managers to reflect local data, knowledge, capacities, and priorities. 

Cover of report with people in boat on a flooded street.
Published
March 2019

Flooding is the natural hazard with the greatest economic and social impact in the United States, and these impacts are becoming more severe over time. This report contributes to existing knowledge on urban flooding by examining real-world examples in specific metropolitan areas: Baltimore, Houston, Chicago, and Phoenix. The report identifies commonalities and variances among the case study metropolitan areas in terms of causes, adverse impacts, unexpected problems in recovery, or effective mitigation strategies, as well as key themes of urban flooding. It also relates, as appropriate, causes and actions of urban flooding to existing federal resources or policies.

Climate Summaries Report Cover
Published
January 2017

These state summaries were produced to meet a demand for state-level information in the wake of the Third U.S. National Climate Assessment, released in 2014. The summaries cover assessment topics directly related to NOAA’s mission, specifically historical climate variations and trends, future climate model projections of climate conditions during the 21st century, and past and future conditions of sea level and coastal flooding. Click on each state to see key messages, figures, and and a summary of climate impacts in your state.

Western Wildfires: A Fiery Future Report Cover
Published
June 2016

An analysis of 45 years of U.S. Forest Service records from the western U.S. show that the number of large fires on Forest Service land is increasing dramatically. The area burned by these fires is also growing at an alarming rate.

 Cover of The Great American Adaptation Road Trip
Published
January 2015

Find out how hometowns across the United States are building their resilience to climate change. Two women who studied climate change science and policy in graduate school took a three-month road trip to find out what climate change adaptation looks like in the United States. They visited more than 30 communities preparing for climate change and documented what they learned in blogs and through media reports. This report describes six big lessons from the ongoing adaptation work they saw across the country.

Cover of the Considerations for Climate Change and Variability Adaptation on the Navajo Nation report
Published
March 2014

This report summarizes the impact of climate change on Navajo Nation lands and discusses factors that affect people’s vulnerabilities to climate impacts, outlining a way for the region's residents to plan for ongoing environmental change.

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.