This book tells the exciting story of the ice ages—what they were like, why they occurred, and when the next one is due. The solution to the ice age mystery originated when the National Science Foundation organized the CLIMAP project to study changes in the earth’s climate over the past 700,000 years. One of the goals was to produce a map of the earth during the last ice age. Scientists examined cores of sediment from the Indian Ocean bed and deciphered a continuous history for the past 500,000 years. Their work ultimately confirmed the theory that the earth’s irregular orbital motions account for the bizarre climatic changes which bring on ice ages.
This is a tale of scientific discovery and the colorful people who participated: Louis Agassiz, the young Swiss naturalist whose geological studies first convinced scientists that the earth has recently passed through an ice age; the Reverend William Buckland, an eccentric but respected Oxford professor who fought so hard against the ice-age theory before accepting it; James Croll, a Scots mechanic who educated himself as a scientist and first formulated the astronomic theory of ice ages; Milutin Milankovitch, the Serbian mathematician who gave the astronomic theory its firm quantitative foundation; and the many other astronomers, geochemists, geologists, paleontologists, and geophysicists who have been engaged for nearly a century and a half in the pressing search for a solution to the ice-age mystery.
Many students come to African history with a host of stereotypes that are not always easy to dislodge. One of the most common is that of Africa as safari grounds—as the land of expansive, unpopulated game reserves untouched by civilization and preserved in their original pristine state by the tireless efforts of contemporary conservationists. With prose that is elegant in its simplicity and analysis that is forceful and compelling, Jan Bender Shetler brings the landscape memory of the Serengeti to life. She demonstrates how the social identities of western Serengeti peoples are embedded in specific spaces and in their collective memories of those spaces. Using a new methodology to analyze precolonial oral traditions, Shetler identifies core spatial images and reevaluates them in their historical context through the use of archaeological, linguistic, ethnographic, ecological, and archival evidence. Imagining Serengeti is a lively environmental history that will ensure that we never look at images of the African landscape in quite the same way.
When The Impact of Global Warming on Texas was first published in 1995, it discussed climate change as a likely future phenomenon, predicted by scientific studies. This entirely rewritten second edition presents evidence that early climate change impacts can now be observed and identifies the threats climate change will pose to Texas through the year 2050. It also offers the hopeful message that corrective action, if taken now, can avert unmanageable consequences.
The book begins with a discussion of climate science and modeling and the information that can be derived from these sources for Texas. The authors follow this with an analysis of actual climate trends in the various Texas climate regions, including a predicted rise in temperatures of 5.4 degrees F (plus or minus 1.8 F) by the end of the century. This could lead to less rainfall and higher evaporation, especially in regions that are already dry. Other important effects include possible changes in El Niño (climate variability) patterns and hurricane behaviors. Taking into account projected population growth, subsequent chapters explore likely trends with respect to water availability, coastal impacts, and biodiversity.
The authors then look at the issues from a policy perspective, focusing on Texas's importance to the national economy as an energy producer, particularly of oil and gas. They recommend that Texas develop its own climate change policy to serve the goals of reducing greenhouse gas emissions, increasing energy independence, ensuring regional security, and improving management of water, air, land, and wildlife.
Recent decades have been marked by the decline or collapse of one fishery after another around the world, from swordfish in the North Atlantic to orange roughy in the South Pacific. While the effects of a collapse on local economies and fishing-dependent communities have generated much discussion, little attention has been paid to its impacts on the overall health of the ocean's ecosystems.
In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean presents the first empirical assessment of the status of ecosystems in the North Atlantic ocean. Drawing on a wide range of studies including original research conducted for this volume, the authors analyze 14 large marine ecosystems to provide an indisputable picture of an ocean whose ecology has been dramatically altered, resulting in a phenomenon described by the authors as "fishing down the food web." The book:
This is the first in a series of assessments by the world's leading marine scientists, entitled "The State of the World's Oceans." In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean is a landmark study, the first of its kind to make a comprehensive, ecosystem-based assessment of the North Atlantic Ocean, and will be essential reading for policymakers at the state, national, and international level concerned with fisheries management, as well for scientists, researchers, and activists concerned with marine issues or fishing and the fisheries industry.
From diverse disciplines—history, archaeology, sociology, literature, law, and cultural anthropology—the contributors provide case studies from Latin America, Asia, and Africa. They point the way toward a search for a rain forest that is both a natural entity and a social history, an inhabited place and a shifting set of ideas. The essayists demonstrate how the single image of a wild and yet fragile forest became fixed in the popular mind in the late twentieth century, thereby influencing the policies of corporations, environmental groups, and governments. Such simplistic conceptions, In Search of the Rain Forest shows, might lead companies to tout their “green” technologies even as they try to downplay the dissenting voices of native populations. Or they might cause a government to create a tiger reserve that displaces peaceful peasants while opening the doors to poachers and bandits. By encouraging a nuanced understanding of distinctive, constantly evolving forests with different social and natural histories, this volume provides an important impetus for protection efforts that take into account the rain forest in all of its complexity.
Contributors. Scott Fedick, Alex Greene, Paul Greenough, Nancy Peluso, Suzana Sawyer, Candace Slater, Charles Zerner
A commercial company established in 1600 to monopolize trade between England and the Far East, the East India Company grew to govern an Indian empire. Exploring the relationship between power and knowledge in European engagement with Asia, Indian Ink examines the Company at work and reveals how writing and print shaped authority on a global scale in the seventeenth and eighteenth centuries.
Tracing the history of the Company from its first tentative trading voyages in the early seventeenth century to the foundation of an empire in Bengal in the late eighteenth century, Miles Ogborn takes readers into the scriptoria, ships, offices, print shops, coffeehouses, and palaces to investigate the forms of writing needed to exert power and extract profit in the mercantile and imperial worlds. Interpreting the making and use of a variety of forms of writing in script and print, Ogborn argues that material and political circumstances always undermined attempts at domination through the power of the written word.
Navigating the juncture of imperial history and the history of the book, Indian Ink uncovers the intellectual and political legacies of early modern trade and empire and charts a new understanding of the geography of print culture.
Biliana Cicin-Sain and Robert W. Knecht are co-directors of the Center for the Study of Marine Policy at the University of Delaware in Newark, Delaware and co-authors of The Future of U.S. Ocean Policy (Island Press, 1998).
Iowa's rock record is the product of more than three billion years of geological processes. The state endured multiple episodes of continental glaciation during the Pleistocene Ice Age, and the last glacier retreated from Iowa a mere (geologically speaking) twelve thousand years ago. Prior to that, dozens of seas came and went, leaving behind limestone beds with rich fossil records. Lush coal swamps, salty lagoons, briny basins, enormous alluvial plains, ancient rifts, and rugged Precambrian mountain belts all left their mark. In Iowa's Geological Past, Wayne Anderson gives us an up-to-date and well-informed account of the state's vast geological history from the Precambrian through the end of the Great Ice Age.
Anderson takes us on a journey backward into time to explore Iowa's rock-and-sediment record. In the distant past, prehistoric Iowa was covered with shallow seas; coniferous forests flourished in areas beyond the continental glaciers; and a wide variety of animals existed, including mastodon, mammoth, musk ox, giant beaver, camel, and giant sloth.
The presence of humans can be traced back to the Paleo-Indian interval, 9,500 to 7,500 years ago. Iowa in Paleozoic time experienced numerous coastal plain and shallow marine environments. Early in the Precambrian, Iowa was part of ancient mountain belts in which granite and other rocks were formed well below the earth's surface.
The hills and valleys of the Hawkeye State are not everlasting when viewed from the perspective of geologic time. Overall, Iowa's geologic column records an extraordinary transformation over more than three billion years. Wayne Anderson's profusely illustrated volume provides a comprehensive and accessible survey of the state's remarkable geological past.
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