Digital information and networks challenge the core practices of libraries, archives, and all organizations with intensive information management needs in many respectsâ€"not only in terms of accommodating digital information and technology, but also through the need to develop new economic and organizational models for managing information. LC21: A Digital Strategy for the Library of Congress discusses these challenges and provides recommendations for moving forward at the Library of Congress, the world's largest library. Topics covered in LC21 include digital collections, digital preservation, digital cataloging (metadata), strategic planning, human resources, and general management and budgetary issues. The book identifies and elaborates upon a clear theme for the Library of Congress that is applicable more generally: the digital age calls for much more collaboration and cooperation than in the past. LC21 demonstrates that information-intensive organizations will have to change in fundamental ways to survive and prosper in the digital age.

Megadrought and Collapse is the first book to treat in one volume the current paleoclimatic and archaeological evidence of megadrought events coincident with major prehistoric and historical examples of societal collapse. Previous works have offered multi-causal explanations for collapse, from overpopulation, overexploitation of resources, and warfare to poor leadership and failure to adapt to environmental changes. In earlier synthetic studies of major instances of collapse, the full force of climate change has often not been considered. This volume includes nine case studies that span the globe and stretch over fourteen thousand years, from the paleolithic hunter-gatherer collapse of the 12th millennium BC to the 15th century AD fall of the Khmer capital at Angkor. Together, the studies constitute a primary sourcebook in which principal investigators in archaeology and paleoclimatology present their original research. Each case study juxtaposes the latest paleoclimatic evidence of megadrought (so-called for its severity and its decades - to centuries-long duration) with available archaeological records of synchronous societal collapse. The megadrought data are derived from all five archival paleoclimate proxy sources: speleothems (cave stalagmites), tree rings, and lake, marine, and glacial cores. The archaeological records in each case are the most recently retrieved. With Megadrought and Collapse, Harvey Weiss and his team of expert contributors have assembled an authoritative investigation that is certain to engage environmental history readers across disciplines in the sciences and social sciences.