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Changes in climate are driven by natural and human-induced perturbations of the Earth's energy balance. These climate drivers or "forcings" include variations in greenhouse gases, aerosols, land use, and the amount of energy Earth receives from the Sun. Although climate throughout Earth's history has varied from "snowball" conditions with global ice cover to "hothouse" conditions when glaciers all but disappeared, the climate over the past 10,000 years has been remarkably stable and favorable to human civilization. Increasing evidence points to a large human impact on global climate over the past century. The report reviews current knowledge of climate forcings and recommends critical research needed to improve understanding. Whereas emphasis to date has been on how these climate forcings affect global mean temperature, the report finds that regional variation and climate impacts other than temperature deserve increased attention.
The National Academies' Board on Atmospheric Sciences and Climate (BASC) held a workshop to explore and evaluate current efforts to model physical processes of coupled atmosphere-land-ocean (A-L-O) models. Numerical models of the atmosphere and ocean are central to weather prediction, research, and education. Although great strides have been made over the past few decades in understanding the atmosphere and ocean, modeling capabilities, and numerical A-L-O simulations, some unresolved processes in the models do not adequately represent knowledge of the underlying physics. Moreover, there is evidence that further progress in numerical simulations is being impeded by the slow pace of improveme...
Water managers rely on predicting changes in the hydrologic cycle on seasonal-to-interannual time frames to prepare for water resource needs. Seasonal to interannual predictability of the hydrologic cycle is related to local and remote influences involving land processes and ocean processes, such as the El Niño Southern Oscillation. Although advances in understanding land-surface processes show promise in improving climate prediction, incorporating this information into water management decision processes remains a challenge since current models provide only limited information for predictions on seasonal and longer time scales. To address these needs, the Global Energy and Water Cycle Ex...
The U.S. Climate Change Science Program (CCSP), established in 2002 to coordinate climate and global change research conducted in the United States and to support decision-making on climate-related issues, is producing twenty-one synthesis and assessment reports that address its research, observation, and decision-support needs. The first report, produced by the National Oceanic and Atmospheric Administration (NOAA) in coordination with other agencies, focuses on understanding reported differences between independently produced data sets of temperature trends for the surface through the lower stratosphere and comparing these data sets to model simulations. To ensure credibility and quality, NOAA asked the National Research Council to conduct an independent review of the report. The committee concluded that the report Temperature Trends in the Lower Atmosphere: Understanding and Reconciling Differences is a good first draft that covers an appropriate range of issues, but that it could be strengthened in a number of ways.
In this important new primer, Dustin Mulvaney makes a passionate case for the significance of solar power energy and offers a vision for a more sustainable and just solar industry for the future. The solar energy industry has grown immensely over the past several years and now provides up to a fifth of California’s power. But despite its deservedly green reputation, solar development and deployment have potential social and environmental consequences, from poor factory labor standards to landscape impacts on wildlife. Using a wide variety of case studies and examples to trace the life cycle of photovoltaics, Mulvaney expertly outlines the state of the solar industry, exploring the ongoing conflicts between ecological concerns and climate mitigation strategies, as well as current trade disputes and the fate of toxins in solar waste products. This exceptional overview will outline the industry’s current challenges and possible future for students in environmental studies, energy policy, environmental sociology, and other aligned fields.
This book argues that government action alone will not prevent dangerous climate change, but that private governance can fill the gap.
The nation's network of more than 130 Next Generation Radars (NEXRADs) is used to detect wind and precipitation to help National Weather Service forecasters monitor and predict flash floods and other storms. This book assesses the performance of the Sulphur Mountain NEXRAD in Southern California, which has been scrutinized for its ability to detect precipitation in the atmosphere below 6000 feet. The book finds that the Sulphur Mountain NEXRAD provides crucial coverage of the lower atmosphere and is appropriately situated to assist the Los Angeles-Oxnard National Weather Service Forecast Office in successfully forecasting and warning of flash floods. The book concludes that, in general, NEXRAD technology is effective in mountainous terrain but can be improved.
The 7th installment of the REWAS conference series held at the TMS Annual Meeting& Exhibition focuses on developing tomorrow’s technical cycles. The papers in thiscollection explore the latest technical and societal developments enabling sustainabilitywithin our global economy with an emphasis on recycling and waste management. The2022 collection includes contributions from the following symposia: • Coupling Metallurgy and Sustainability: An EPD Symposium in Honor of Diran Apelian• Recovering the Unrecoverable• Sustainable Production and Development Perspectives• Automation and Digitalization for Advanced Manufacturing• Decarbonizing the Materials Industry
Electricity from Sunlight, hochgelobt für seine ansprechende Gestaltung, seinen verständlichen Stil und seine klaren Erklärungen komplexer Sachverhalte ohne viel Mathematik, wurde gründlich überarbeitet und aktualisiert. Das Buch beschreibt die Fortschritte auf dem weltweiten Photovoltaik-Markt, bei der Wirtschaftlichkeit und Installationsbasis. Kernaspekte der 2. Auflage: - Aktuelles zu den Fortschritten der Photovoltaik, relevantes neues Material zu netzgekoppelten Systemen. - Noch detailliertere Erläuterung der wissenschaftlichen Prinzipien der Photovoltaik, von Solarzellen, Modulen und Systemen. - Aktuelle Informationen aus dem Photovoltaik-Markt, inkl. Umwandlungseffizienz und Aus...
This book examines our understanding of technology and suggests that machines are counterfeit organisms that seem to replace human bodies but are ultimately means of displacing workloads and environmental loads beyond our horizon. It emphasises that technology is not the politically neutral revelation of natural principles that we tend to think, but largely a means of accumulating, through physically asymmetric exchange, the material means of harnessing natural forces to reinforce social relations of power. Alf Hornborg reflects on how our cultural illusions about technology appeared in history and how they continue to stand in the way of visions for an equal and sustainable world. He argues for a critical reconceptualisation of modern technology as an institution for redistributing human time, resources, and risks in world society. The book highlights a need to think of world trade in other terms than money and raises fundamental questions about the role of human-artifact relations in organising human societies. It will be of interest to a range of scholars working in anthropology, sociology, economics, development studies, and the philosophy of technology.