Review of the Draft Fourth National Climate Assessment
Review of the Draft Fourth National Climate Assessment

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2018-06-18

Total Pages: 207

ISBN-13: 0309471699

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Climate change poses many challenges that affect society and the natural world. With these challenges, however, come opportunities to respond. By taking steps to adapt to and mitigate climate change, the risks to society and the impacts of continued climate change can be lessened. The National Climate Assessment, coordinated by the U.S. Global Change Research Program, is a mandated report intended to inform response decisions. Required to be developed every four years, these reports provide the most comprehensive and up-to-date evaluation of climate change impacts available for the United States, making them a unique and important climate change document. The draft Fourth National Climate Assessment (NCA4) report reviewed here addresses a wide range of topics of high importance to the United States and society more broadly, extending from human health and community well-being, to the built environment, to businesses and economies, to ecosystems and natural resources. This report evaluates the draft NCA4 to determine if it meets the requirements of the federal mandate, whether it provides accurate information grounded in the scientific literature, and whether it effectively communicates climate science, impacts, and responses for general audiences including the public, decision makers, and other stakeholders.

America's Climate Choices
America's Climate Choices

Author: National Research Council

Publisher: National Academies Press

Published: 2011-06-11

Total Pages: 134

ISBN-13: 0309145856

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Climate change is occurring. It is very likely caused by the emission of greenhouse gases from human activities, and poses significant risks for a range of human and natural systems. And these emissions continue to increase, which will result in further change and greater risks. America's Climate Choices makes the case that the environmental, economic, and humanitarian risks posed by climate change indicate a pressing need for substantial action now to limit the magnitude of climate change and to prepare for adapting to its impacts. Although there is some uncertainty about future risk, acting now will reduce the risks posed by climate change and the pressure to make larger, more rapid, and potentially more expensive reductions later. Most actions taken to reduce vulnerability to climate change impacts are common sense investments that will offer protection against natural climate variations and extreme events. In addition, crucial investment decisions made now about equipment and infrastructure can "lock in" commitments to greenhouse gas emissions for decades to come. Finally, while it may be possible to scale back or reverse many responses to climate change, it is difficult or impossible to "undo" climate change, once manifested. Current efforts of local, state, and private-sector actors are important, but not likely to yield progress comparable to what could be achieved with the addition of strong federal policies that establish coherent national goals and incentives, and that promote strong U.S. engagement in international-level response efforts. The inherent complexities and uncertainties of climate change are best met by applying an iterative risk management framework and making efforts to significantly reduce greenhouse gas emissions; prepare for adapting to impacts; invest in scientific research, technology development, and information systems; and facilitate engagement between scientific and technical experts and the many types of stakeholders making America's climate choices.

Attribution of Extreme Weather Events in the Context of Climate Change
Attribution of Extreme Weather Events in the Context of Climate Change

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2016-07-28

Total Pages: 187

ISBN-13: 0309380979

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As climate has warmed over recent years, a new pattern of more frequent and more intense weather events has unfolded across the globe. Climate models simulate such changes in extreme events, and some of the reasons for the changes are well understood. Warming increases the likelihood of extremely hot days and nights, favors increased atmospheric moisture that may result in more frequent heavy rainfall and snowfall, and leads to evaporation that can exacerbate droughts. Even with evidence of these broad trends, scientists cautioned in the past that individual weather events couldn't be attributed to climate change. Now, with advances in understanding the climate science behind extreme events and the science of extreme event attribution, such blanket statements may not be accurate. The relatively young science of extreme event attribution seeks to tease out the influence of human-cause climate change from other factors, such as natural sources of variability like El Niño, as contributors to individual extreme events. Event attribution can answer questions about how much climate change influenced the probability or intensity of a specific type of weather event. As event attribution capabilities improve, they could help inform choices about assessing and managing risk, and in guiding climate adaptation strategies. This report examines the current state of science of extreme weather attribution, and identifies ways to move the science forward to improve attribution capabilities.

Climate and Social Stress
Climate and Social Stress

Author: National Research Council

Publisher: National Academies Press

Published: 2013-02-14

Total Pages: 253

ISBN-13: 0309278562

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Climate change can reasonably be expected to increase the frequency and intensity of a variety of potentially disruptive environmental events-slowly at first, but then more quickly. It is prudent to expect to be surprised by the way in which these events may cascade, or have far-reaching effects. During the coming decade, certain climate-related events will produce consequences that exceed the capacity of the affected societies or global systems to manage; these may have global security implications. Although focused on events outside the United States, Climate and Social Stress: Implications for Security Analysis recommends a range of research and policy actions to create a whole-of-government approach to increasing understanding of complex and contingent connections between climate and security, and to inform choices about adapting to and reducing vulnerability to climate change.

Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation
Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation

Author: Intergovernmental Panel on Climate Change

Publisher: Cambridge University Press

Published: 2012-05-28

Total Pages: 593

ISBN-13: 1107025060

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Extreme weather and climate events, interacting with exposed and vulnerable human and natural systems, can lead to disasters. This Special Report explores the social as well as physical dimensions of weather- and climate-related disasters, considering opportunities for managing risks at local to international scales. SREX was approved and accepted by the Intergovernmental Panel on Climate Change (IPCC) on 18 November 2011 in Kampala, Uganda.

Climate Change
Climate Change

Author: The Royal Society

Publisher: National Academies Press

Published: 2014-02-26

Total Pages: 74

ISBN-13: 0309302021

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Climate Change: Evidence and Causes is a jointly produced publication of The US National Academy of Sciences and The Royal Society. Written by a UK-US team of leading climate scientists and reviewed by climate scientists and others, the publication is intended as a brief, readable reference document for decision makers, policy makers, educators, and other individuals seeking authoritative information on the some of the questions that continue to be asked. Climate Change makes clear what is well-established and where understanding is still developing. It echoes and builds upon the long history of climate-related work from both national academies, as well as on the newest climate-change assessment from the United Nations' Intergovernmental Panel on Climate Change. It touches on current areas of active debate and ongoing research, such as the link between ocean heat content and the rate of warming.

Review of the Draft Interagency Report on the Impacts of Climate Change on Human Health in the United States
Review of the Draft Interagency Report on the Impacts of Climate Change on Human Health in the United States

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2015-08-24

Total Pages: 96

ISBN-13: 0309377307

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The U.S. National Climate Assessment identified a number of ways in which climate change is affecting, and is likely to affect, people, infrastructure, natural resources, and ecosystems. Those impacts, in turn, are increasingly having important current and potential future consequences for human health. There is a need to probe more deeply into how climate change impacts on the environment can create environmental stressors that, in turn, are having and/or have the potential to have significant impact on human health in a number of dimensions. In response to this need, the U.S. Global Change Research Program (USGCRP) has initiated an interagency Scientific Assessment on the Impacts of Climate Change on Human Health in the United States. The Assessment is intended to inform public health authorities, other planning and policy entities, and the general public. Review of the Draft Interagency Report on the Impacts of Climate Change on Human Health in the United States evaluates the scientific basis, findings, and key messages of the USGCRP Draft Assessment. This report offers a number of overarching suggestions on how the USGCRP report authors can enhance their identification and assessment of the science and better communicate their conclusions to all of their target audiences. These recommendations this help the Assessment to play a significant role in continued efforts to examine and explore the impacts of climate change on human health.

Abrupt Climate Change
Abrupt Climate Change

Author: National Research Council

Publisher: National Academies Press

Published: 2002-04-23

Total Pages: 252

ISBN-13: 0309133041

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The climate record for the past 100,000 years clearly indicates that the climate system has undergone periodic-and often extreme-shifts, sometimes in as little as a decade or less. The causes of abrupt climate changes have not been clearly established, but the triggering of events is likely to be the result of multiple natural processes. Abrupt climate changes of the magnitude seen in the past would have far-reaching implications for human society and ecosystems, including major impacts on energy consumption and water supply demands. Could such a change happen again? Are human activities exacerbating the likelihood of abrupt climate change? What are the potential societal consequences of such a change? Abrupt Climate Change: Inevitable Surprises looks at the current scientific evidence and theoretical understanding to describe what is currently known about abrupt climate change, including patterns and magnitudes, mechanisms, and probability of occurrence. It identifies critical knowledge gaps concerning the potential for future abrupt changes, including those aspects of change most important to society and economies, and outlines a research strategy to close those gaps. Based on the best and most current research available, this book surveys the history of climate change and makes a series of specific recommendations for the future.