Tide gauges show that global sea level has risen about 7 inches during the 20th century, and recent satellite data show that the rate of sea-level rise is accelerating. As Earth warms, sea levels are ...rising mainly because ocean water expands as it warms; and water from melting glaciers and ice sheets is flowing into the ocean. Sea-level rise poses enormous risks to the valuable infrastructure, development, and wetlands that line much of the 1,600 mile shoreline of California, Oregon, and Washington. As those states seek to incorporate projections of sea-level rise into coastal planning, they asked the National Research Council to make independent projections of sea-level rise along their coasts for the years 2030, 2050, and 2100, taking into account regional factors that affect sea level.
Sea-Level Rise for the Coasts of California, Oregon, and Washington: Past, Present, and Future explains that sea level along the U.S. west coast is affected by a number of factors. These include: climate patterns such as the El Niño, effects from the melting of modern and ancient ice sheets, and geologic processes, such as plate tectonics. Regional projections for California, Oregon, and Washington show a sharp distinction at Cape Mendocino in northern California. South of that point, sea-level rise is expected to be very close to global projections. However, projections are lower north of Cape Mendocino because the land is being pushed upward as the ocean plate moves under the continental plate along the Cascadia Subduction Zone. However, an earthquake magnitude 8 or larger, which occurs in the region every few hundred to 1,000 years, would cause the land to drop and sea level to suddenly rise.
The Arctic is thawing. In summer, cruise ships sail through the once ice-clogged Northwest Passage, lakes form on top of the Greenland Ice Sheet, and polar bears swim farther and farther in search of ...waning ice floes. At the opposite end of the world, floating Antarctic ice shelves are shrinking. Mountain glaciers are in retreat worldwide, unleashing flash floods and avalanches. We are on thin ice-and with melting permafrost's potential to let loose still more greenhouse gases, these changes may be just the beginning.Vanishing Iceis a powerful depiction of the dramatic transformation of the cryosphere-the world of ice and snow-and its consequences for the human world. Delving into the major components of the cryosphere, including ice sheets, valley glaciers, permafrost, and floating ice, Vivien Gornitz gives an up-to-date explanation of key current trends in the decline of ice mass. Drawing on a long-term perspective gained by examining changes in the cryosphere and corresponding variations in sea level over millions of years, she demonstrates the link between thawing ice and sea-level rise to point to the social and economic challenges on the horizon. Gornitz highlights the widespread repercussions of ice loss, which will affect countless people far removed from frozen regions, to explain why the big meltdown matters to us all. Written for all readers and students interested in the science of our changing climate,Vanishing Iceis an accessible and lucid warning of the coming thaw.
Ellavut / Our Yup'ik World and Weather is a result of nearly ten years of gatherings among Yup'ik elders to document the qanruyutet (words of wisdom) that guide their interactions with the ...environment. In an effort to educate their own young people as well as people outside the community, the elders discussed the practical skills necessary to live in a harsh environment, stressing the ethical and philosophical aspects of the Yup'ik relationship with the land, ocean, snow, weather, and environmental change, among many other elements of the natural world.
At every gathering, at least one elder repeated the Yup'ik adage, "The world is changing following its people." The Yup'ik see environmental change as directly related not just to human actions, such as overfishing or burning fossil fuels, but also to human interactions. The elders encourage young people to learn traditional rules and proper behavior--to act with compassion and restraint--in order to reverse negative impacts on their world. They speak not only to educate young people on the practical skills they need to survive but also on the knowing and responsive nature of the world in which they live.
Human activities impact the environment and modify the cycles of important elements such as carbon and nitrogen from local to global scales. In order to maintain long-term and sustainable use of the ...world's natural resources it is important that we understand how and why ecosystems respond to such changes. This book explains the structure and functioning of terrestrial ecosystems, using examples ranging from the Arctic to the tropics to demonstrate how they react under differing conditions. This knowledge is developed into a set of principles that can be used as starting points for analysing questions about ecosystem behaviour. Ecosystem dynamics are also considered, illustrating how ecosystems develop and change over a range of temporal and spatial scales and how they react to perturbations, whether natural or man-made. Throughout the book, descriptive studies are merged with simple mathematical models to reinforce the concepts discussed and aid the development of predictive tools.
The Future of Nature Robin, Libby; Sörlin, Sverker; Warde, Paul
10/2013
eBook, Book
This anthology provides an historical overview of the scientific ideas behind environmental prediction and how, as predictions about environmental change have been taken more seriously and widely, ...they have affected politics, policy, and public perception. Through an array of texts and commentaries that examine the themes of progress, population, environment, biodiversity and sustainability from a global perspective, it explores the meaning of the future in the twenty-first century. Providing access and reference points to the origins and development of key disciplines and methods, it will encourage policy makers, professionals, and students to reflect on the roots of their own theories and practices.
This new book explains why the international community has responded with a sense of fatalistic passivity to climate change.
It presents a distinct critique of realism through the study of this ...topic, commonly overlooked in international relations. The author argues that the realist view rests on a dangerous contradiction; far from delivering security it serves to limit the way we think about the new generation of risks we face. The book also provides a detailed case study evaluating US climate politics under the Clinton and Bush administrations.
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