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.

The latest scientific knowledge on climate change indicates that higher greenhouse gas concentrations in the atmosphere through unchecked emissions will provoke severe climate change and ocean acidification. Both impacts can fundamentally alter environmental structures on which humanity relies and have serious consequences for the food chain among others. Climate change therefore poses major socio-economic, technical and environmental challenges which will have serious impacts on countries’ pathways towards sustainable development. As a result, climate change and sustainable development have increasingly become interlinked. A changing climate makes achieving Millennium Development Goals more difficult and expensive, so there is every reason to achieve development goals with low greenhouse gas emissions. This leads to the following five challenges discussed by Challenges and Solutions for Climate Change: 1. To place climate negotiations in the wider context of sustainability, equity and social change so that development benefits can be maximised at the same time as decreasing greenhouse gas emissions. 2. To select technologies or measures for climate change mitigation and adaptation based on countries’ sustainable development and climate goals. 3. To create low greenhouse gas emission and climate resilient strategies and action plans in order to accelerate innovation needed for achieving sustainable development and climate goals on the scale and timescale required within countries. 4. To rationalize the current directions in international climate policy making in order to provide coherent and efficient support to developing countries in devising and implementing strategies and action plans for low emission technology transfers to deliver climate and sustainable development goals. 5. To facilitate development of an international framework for financial resources in order to support technology development and transfer, improve enabling environments for innovation, address equity issues such as poor people’s energy access, and make implementation of activities possible at the desired scale within the country. The solutions presented in Challenges and Solutions for Climate Change show how ambitious measures can be undertaken which are fully in line with domestic interests, both in developing and in developed countries, and how these measures can be supported through the international mechanisms.

Providing an up-to-date synthesis of all knowledge relevant to the climate change issue, this book ranges from the basic science documenting the need for policy action to the technologies, economic instruments and political strategies that can be employed in response to climate change. Ethical and cultural issues constraining the societal response to climate change are also discussed. This book provides a handbook for those who want to understand and contribute to meeting this challenge. It covers a very wide range of disciplines - core biophysical sciences involved with climate change (geosciences, atmospheric sciences, ocean sciences, ecology/biology) as well as economics, political science, health sciences, institutions and governance, sociology, ethics and philosophy, and engineering. As such it will be invaluable for a wide range of researchers and professionals wanting a cutting-edge synthesis of climate change issues, and for advanced student courses on climate change.

Climate change is increasing the severity of disasters and adverse weather conditions worldwide, with particularly devastating effects on developing countries and on individuals with lower resources. Climate change is likely to impact mental health and psychosocial well-being via multiple pathways, leading to new challenges. Direct effects such as gradual environmental changes, higher temperatures, and natural disasters, are likely to lead to more indirect consequences such as social and economic stressors, population displacement, and conflict. Climate change, largely the product of industrialized nations, is projected to magnify existing inequalities and to impact the most vulnerable, including those with low resources, individuals living in developing countries and specific populations such as women, children and those with pre-existing disabilities. This book outlines areas of impact on human well being, consider specific populations, and shed light on mitigating the impact of climate change. Recommendations discuss ways of strengthening community resilience, building on local capacities, responding to humanitarian crises, as well as conducting research and evaluation projects in diverse settings.

Global Climate Change presents both practical and theoretical aspects of global climate change from across geological periods. It addresses holistic issues related to climate change and its contribution in triggering the temperature increase with a multitude of impacts on natural processes. As a result, it helps to identify the gaps between policies that have been put in place and the continuously increasing emissions. The challenges presented include habitability, biodiversity, natural resources, and human health. It is organized into information on the past, present, and future of climate change to lead to a more complete understanding and therefore effective solutions.Placing an emphasis on recent climate change research, Global Climate Change helps to bring researchers and graduate students in climate science, environmental science, and sustainability up to date on the science of climate change so far and presents a baseline for how to move into the future effectively. - Addresses the variety of challenges associated with climate change, along with possible solutions - Includes suggestions for future research on climate change - Covers climate change holistically, including global and regional scales, ecosystems, agriculture, energy, and sustainability - Presents both practical and theoretical research, including coverage of climate change over various geological periods

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.

Environmental engineers support the well-being of people and the planet in areas where the two intersect. Over the decades the field has improved countless lives through innovative systems for delivering water, treating waste, and preventing and remediating pollution in air, water, and soil. These achievements are a testament to the multidisciplinary, pragmatic, systems-oriented approach that characterizes environmental engineering. Environmental Engineering for the 21st Century: Addressing Grand Challenges outlines the crucial role for environmental engineers in this period of dramatic growth and change. The report identifies five pressing challenges of the 21st century that environmental engineers are uniquely poised to help advance: sustainably supply food, water, and energy; curb climate change and adapt to its impacts; design a future without pollution and waste; create efficient, healthy, resilient cities; and foster informed decisions and actions.