• Summary
  • Contents
  • Subject index

The SAGE Handbook of Geographical Knowledge is a critical inquiry into how Geography as a field of knowledge has been produced, re-produced, and re-imagined. It comprises three sections on Geographical Orientations, Geography’s Venues, and Critical Geographical Concepts and Controversies. The first provides an overview of the genealogy of ‘geography.' The second highlights the types of spatial settings and locations in which geographical knowledge has been produced. The third focuses on venues of primary importance in the historical geography of geographical thought.

Glaciation and Ice Ages
Glaciation and ice ages
Introduction

Ideas about and theoretical formulation of processes of glaciation and the periodization of ice ages when glaciers and ice sheets were relatively dominant over the Earth's surface comprise a vital theme in modern geography. Conceptualizing the global environmental transformation featuring glaciers expanding over entire continents is both familiar and yet fantastically strange, evoking a series of physical–geographic quandaries that have not only framed a dramatic history of scientific discovery since the eighteenth century but are also prompting a reintegration of various disciplines into a unified Earth-systems science. A comprehensive ‘physics of the Earth’ was indeed one of the expressed goals of Alexander von Humboldt, arguably the prime architect of modern geography as an integrative field, which ‘aimed at ...

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