National Climate Assessments | GlobalChange.gov

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<main class="main-content usa-layout-docs usa-section " role="main" id="main-content"> <div class="grid-container"> <div class="breadcrumb-container"> <div> <div id="block-breadcrumbs" class="block block-system block-system-breadcrumb-block"> <nav class="usa-breadcrumb" role="navigation" aria-labelledby="system-breadcrumb"> <h2 id="system-breadcrumb" class="usa-sr-only">Breadcrumb</h2> <ol class="usa-breadcrumb__list"> <li class="usa-breadcrumb__list-item"> <a href="/" class="usa-breadcrumb__link"><span>Home</span></a> </li> <li class="usa-breadcrumb__list-item"> <span>National Climate Assessments</span> </li> </ol> </nav> </div> </div> </div> <div class=""> <div data-drupal-messages-fallback class="hidden"></div> </div> <div class="grid-row "> </div> <div class="grid-row grid-gap"> <div class="usa-layout-docs__main desktop:grid-col-fill"> <h1 class="page-title">National Climate Assessments</h1> <div id="block-uswds-base-subtheme-content" class="block block-system block-system-main-block"> <article data-history-node-id="277"> <section class="margin-bottom-6"> </section> <section class="margin-bottom-3"> <div class="paragraph paragraph--type--alert paragraph--view-mode--default"> <div class="usa-alert usa-alert--success usa-alert-- "> <div class="usa-alert__body"> <div class="usa-alert__text"><p>The <a class="usa-link" href="https://nca2023.globalchange.gov/">Fifth National Climate Assessment</a> was released in November 2023. Please visit <a class="usa-link" href="/our-work/fifth-national-climate-assessment" data-entity-type="node" data-entity-uuid="ae91e126-22e8-4a57-824b-32de8bf81e0e" data-entity-substitution="canonical" title="Fifth National Climate Assessment">globalchange.gov/nca5</a> for information on the Assessment development process and engagement opportunities.</p></div> </div> </div> </div> </section> <section class="margin-bottom-3"> <div class="paragraph paragraph--type--alert paragraph--view-mode--default"> <div class="usa-alert usa-alert--info usa-alert-- "> <div class="usa-alert__body"> <div class="usa-alert__text"><p>USGCRP has initiated development of the Sixth National Climate Assessment. Please visit <a class="usa-link" href="/nca6" data-entity-type="node" data-entity-uuid="7d9b4781-2f66-40c2-9ecb-a23b9fb2a83b" data-entity-substitution="canonical" title="Sixth National Climate Assessment">globalchange.gov/nca6</a> for information on the Assessment development process and engagement opportunities.</p></div> </div> </div> </div> </section> <section class="margin-bottom-3"> <div class="paragraph paragraph--type--alert paragraph--view-mode--default"> <div class="usa-alert usa-alert--info usa-alert-- "> <div class="usa-alert__body"> <div class="usa-alert__text"><p>El Cambio Global de Estados Unidos (US Global Change Research Program, USGCRP) ha iniciado el desarrollo de La Sexta Evaluaci贸n Nacional del Clima (Sixth National Climate Assessment, NCA6). Para obtener m谩s informaci贸n sobre el proceso de desarrollo de la evaluaci贸n y oportunidades para participar, por favor visite <a class="usa-link c-link" href="https://www.globalchange.gov/nca6-espanol" target="_blank">https://www.globalchange.gov/nca6-espanol</a>.</p></div> </div> </div> </div> </section> <section class="margin-bottom-3"> <div class="paragraph paragraph--type--basic-text paragraph--view-mode--default"> <div class="field field--name-field-body field--type-text-long field--label-hidden field__item"><p dir="ltr">USGCRP has four major sets of responsibilities, as defined by the Global Change Research Act (GCRA): a) coordinating global change research across the Federal Government, b) developing and distributing mandated products, c) helping to inform decisions, and d) facilitating international research coordination.  </p><p dir="ltr">In addition to an annual report to Congress and a Strategic Plan, the GCRA requires USGCRP to develop a quadrennial assessment, referred to as the National Climate Assessment, which: </p><blockquote><ul><li dir="ltr"><p>Integrates, evaluates, and interprets the findings of the Program and discusses the scientific uncertainties associated with such findings</p></li><li dir="ltr"><p>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</p></li><li dir="ltr"><p>Analyzes current trends in global change, both human-induced and natural, and projects major trends for the subsequent 25 to 100 years</p></li></ul></blockquote><p dir="ltr">Past National Climate Assessments and other USGCRP assessment reports:</p><ul><li><p dir="ltr"><a class="usa-link" href="https://nca2023.globalchange.gov/">Fifth National Climate Assessment</a> (2023)</p></li><li><p dir="ltr"><a class="usa-link" href="https://carbon2018.globalchange.gov">Second State of the Carbon Cycle Report</a> (2018)</p></li><li><p dir="ltr"><a class="usa-link" href="https://nca2018.globalchange.gov">Fourth National Climate Assessment, Vol. II: Impacts, Risks, and Adaptation in the United States</a> (2018)</p></li><li><p dir="ltr"><a class="usa-link" href="https://science2017.globalchange.gov">Fourth National Climate Assessment, Vol. I: Climate Science Special Report</a> (2017)</p></li><li><p dir="ltr"><a class="usa-link" href="https://health2016.globalchange.gov">Climate and Health Assessment</a> (2016)</p></li><li><p dir="ltr"><a class="usa-link" href="https://www.usda.gov/sites/default/files/documents/FullAssessment.pdf">Global Climate Change, Food Security, and the U.S. Food System</a> (2015)</p></li><li><p dir="ltr"><a class="usa-link" href="https://nca2014.globalchange.gov">Climate Change Impacts In the United States</a> (NCA3; 2014)</p></li><li><p dir="ltr"><a class="usa-link" href="https://nca2009.globalchange.gov">Global Climate Change Impacts in the United States</a> (NCA2; 2009)</p></li><li><p dir="ltr"><a class="usa-link" href="/reports/climate-change-impacts-united-states-potential-consequences-climate-variability-and-change" data-entity-type="node" data-entity-uuid="cdfe34bb-50eb-4e37-8e62-6e9edc4e55bd" data-entity-substitution="canonical" title="Climate Change Impacts on the United States: The Potential Consequences of Climate Variability and Change. Overview.">Climate Change Impacts on the United States: The Potential Consequences of Climate Variability and Change</a> (NCA1; 2001)</p></li></ul></div> </div> </section> </article> </div> </div> </div> </div> </main> <footer class="usa-footer font-family-sans"> <div class="usa-footer__primary-section"> <div class="grid-container"> <nav class="usa-footer__nav" aria-label="Footer navigation"> <ul class="grid-row grid-gap"> <li class="mobile-lg:grid-col-auto usa-footer__primary-content"> <a class="usa-footer__primary-link" href="/reports/our-changing-planet-us-global-change-research-program-fiscal-year-2023">Annual Report</a> </li> <li class="mobile-lg:grid-col-auto usa-footer__primary-content"> <a class="usa-footer__primary-link" href="/about-us/strategic-plan">Strategic Plan</a> </li> <li class="mobile-lg:grid-col-auto usa-footer__primary-content"> <a class="usa-footer__primary-link" href="/our-work/interagency-groups">Interagency Groups</a> </li> <li class="mobile-lg:grid-col-auto 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