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 ...
Glaciation and Ice Ages
Glaciation and ice ages