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Coastal regions around the world have become increasingly crowded, intensively developed, and severely exploited. Hundreds of millions of people living in these low-lying areas are subject to short-term coastal hazards such as cyclones, hurricanes, and destruction due to El Niño, and are also exposed to the long-term threat of global sea-level rise. These massive concentrations of people expose often-fragile coastal environments to the runoff and pollution from municipal, industrial, and agricultural sources as well as the impacts of resource exploitation and a wide range of other human impacts. Can environmental impacts be reduced or mitigated and can coastal regions adapt to natural hazards? Coasts in Crisis is a comprehensive assessment of the impacts that the human population is having on the coastal zone globally and the diverse ways in which coastal hazards impact human settlement and development. Gary Griggs provides a concise overview of the individual hazards, risks, and issues threatening the coastal zone.
"Almost half of the planet's population now lives in the coastal zone. The impacts of these people - three billion and rising - are increasingly affecting the most dynamic and constantly changing environments on Earth. All shorelines are also experiencing a rising sea level, which is causing coastal erosion and flooding, and what may be a more severe future storm and wave climate. Future sea-level rise may be the greatest challenge human civilization has ever faced. Dense populations are taking a toll on the coastal zone, impacting not only the shoreline itself, but also the nearshore waters. The myriad effects include industrial, agricultural, and domestic runoff and discharge; the disposal and accumulation of plastic and other marine debris; extraction of groundwater and petroleum leading to sea water intrusion and ground subsidence; large port developments with their thousands of ships and their associated impacts; overfishing and loss of habitats; and impacts of dams, sand mining, and coastal engineering structures on sandy beaches. Individual hazards, risks, and issues have been studied and written about individually, but there is no reference, book, or source until this one that treats the entire coastal zone as a region under threat. While there are more examples included from California and the United States, the book covers issues and environments from a global perspective so that this book will be useful and informative for students or readers anywhere on the planet."--Provided by publisher.
Alan Turing, Enigma ist die Biographie des legendAren britischen Mathematikers, Logikers, Kryptoanalytikers und Computerkonstrukteurs Alan Mathison Turing (1912-1954). Turing war einer der bedeutendsten Mathematiker dieses Jahrhunderts und eine hAchst exzentrische PersAnlichkeit. Er gilt seit seiner 1937 erschienenen Arbeit "On Computable Numbers," in der er das Prinzip des abstrakten Universalrechners entwickelte, als der Erfinder des Computers. Er legte auch die Grundlagen fA1/4r das heute "KA1/4nstliche Intelligenz" genannte Forschungsgebiet. Turings zentrale Frage "Kann eine Maschine denken?" war das Motiv seiner Arbeit und wird die SchlA1/4sselfrage des Umgangs mit dem Computer werden. Die bis 1975 geheimgehaltene TAtigkeit Turings fA1/4r den britischen Geheimdienst, die zur EntschlA1/4sselung des deutschen Funkverkehrs fA1/4hrte, trug entscheidend zum Verlauf und Ausgang des Zweiten Weltkriegs bei.

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