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
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
January 2021

This report brings together researchers, clinicians, public health experts, climate scientists, tribal experts, and community leaders from throughout Montana to focus on ways climate change impacts the health of Montanans, both now and in the future. The assessment highlights the most likely climate impacts—heat, wildfires, drought, and flood—on physical and mental health, and recommends important steps that communities, health professionals, and individuals can take to lessen those impacts.

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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. 

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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
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.

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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.

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Published
January 2019

The EWN Atlas is a collection of 56 projects illustrating a diverse portfolio of contexts, motivations, and successful outcomes, presented and considered from an Engineering With Nature® perspective to reveal the usefulness of nature-based approaches and the range of benefits that can be achieved. Engineering With Nature is an initiative of the U.S. Army Corps of Engineers enabling more sustainable delivery of economic, social, and environmental benefits associated with water resources infrastructure. EWN intentionally aligns natural and engineering processes to efficiently and sustainably deliver economic, environmental, and social benefits through collaborative processes.

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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
September 2017

The Montana Climate Assessment (MCA) synthesizes, evaluates, and shares credible and relevant scientific information about climate change in Montana with the citizens of the state. The motivation for the MCA arose from citizens and organizations in Montana who have expressed interest in receiving timely and pertinent information about climate change, including information about historical variability, past trends, and projections of future impacts as they relate to topics of economic concern. This first assessment reports on climate trends and their consequences for three of Montana’s vital sectors: water, forests, and agriculture. 

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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.

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Published
May 2015

The Northern Plains has experienced increased weather variability and climatic changes throughout the 20th and early 21st centuries. This assessment presents observed changes, such as increased length of frost-free seasons, which pose risks and opportunities to agricultural production in the region. The assessment also highlights adaptation practices working land managers might consider to prepare for and respond to changes in climate by adjusting management in ways that harness benefits or reduce anticipated effect.

Published
November 2007

The Montana Climate Change Advisory Committee, established by the state's Department of Environmental Quality, evaluated greenhouse gas reduction opportunities in various places in Montana’s economy. The committee agreed upon the 54 policy recommendations described in this Climate Change Action Plan, designed to help reduce Montana’s emissions of heat-trapping greenhouse gases to 1990 levels by the year 2020.