Fourth National Climate Assessment Vol I + II

NCA4 Vol II: Impacts, Risks, and Adaptation in the United States
NCA4 Vol I: Climate Science Special Report
The Reports Library features scientific assessments, annual reports, strategic research plans, and other resources produced by USGCRP and the collaborative efforts of our member agencies. Select reports by other authoritative scientific bodies with whom we work, such as the Intergovernmental Panel on Climate Change (IPCC) and the National Research Council (NRC), are also accessible here. Most reports are available for download (open and click View); some can be ordered in print free of charge (open and click Add to Cart).
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This document describes areas of future growth for the Global Change SysTem for Analysis and Training (START), including strengthening and expanding trans-disciplinary and multi-sectoral expertise in integrated research and assessment; promoting effective communication between communities of research, policy, and practice; and supporting efforts by universities in Africa and Asia-Pacific to inform and engage society in creating more resilient development trajectories.
The two-volume report from the IPCC's Working Group II 1) assesses risks and opportunities for societies, economies, and ecosystems around the world, and 2) considers unique features of major world regions.
This report summarizes the Working Group II contribution to the IPCC's Fifth Assessment Report on climate change. It considers the vulnerability and exposure of human and natural systems, the observed impacts and future risks of climate change, and the potential for and limits to adaptation.
The Synthesis Report synthesizes the main findings of the IPCC's Fifth Assessment Report, based on contributions from Working Group I (The Physical Science Basis), Working Group II (Impacts, Adaptation and Vulnerability), and Working Group III (Mitigation of Climate Change), plus two additional IPCC reports.
The Arctic is undergoing rapid and fundamental change. This report presents an overview of the potential directions of non-climate drivers affecting the Arctic, and explicitly excludes discussion of potential impacts and responses.
The 2014 U.S. Climate Action Report fulfills a commitment under the United Nations Framework Convention on Climate Change (UNFCCC) to publish every four years a National Communication that provides a comprehensive report on actions taken to combat climate change and thereby meet the objectives and provisions of the UNFCCC.
This report highlights eight years of START’s Africa Global Environmental Change (GEC) Grants Program, focusing on the significance and development of the program for GEC research in Africa and the major accomplishments of grant award recipients from 2004 to 2012.
This publication includes the Summary for Policymakers, Technical Summary, Frequently Asked Questions, and Cross-Chapter Boxes for the Working Group II contribution to the IPCC Fifth Assessment Report.
The 2009 Arctic Marine Shipping Assessment (AMSA) called for the Arctic States to identify areas of heightened ecological and cultural significance in light of changing climate conditions and increasing multiple marine uses. This report identifies those areas.
START, founded in 1992, promotes research-driven capacity building that advances knowledge generation and sharing on global environmental change (GEC) issues, including climate change. This biennial report described START's programs related to cities, agriculture, and adaptation in Africa and the Asia-Pacific region.