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bare life

Italian philosopher Giorgio Agamben's concept for life that has been exposed to what he terms the structure of exception that constitutes contemporary biopower. The term originates in ...

succession

succession   Quick reference

A Dictionary of Geography (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

... ( plant succession ) A series of complexes of plant life at a particular site. Plant succession is viewed as the development of plant life on originally bare earth, in a definite sequence; see Leal and Lorscheitter (2007) Acta Bot. Bras. 21, 1 . The term successional dynamics applies to the shifts between successional stages of an ecosystem...

Snowball Earth

Snowball Earth   Quick reference

A Dictionary of Geography (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

...have actually frozen over, resembling a ‘snowball’, and potentially causing some of the most severe crises in the history of life on the planet. Such episodes may have been triggered by a reduction in greenhouse gases in the atmosphere, principally CO 2 (carbon dioxide) and CH 4 (methane). This would have made the global climate colder, creating larger areas of ice and snow. This ice and snow reflects more solar radiation than does bare ground or liquid water, which creates a ‘positive feedback’. If the Earth ever became approximately half-covered by ice or...

homo sacer

homo sacer   Quick reference

A Dictionary of Human Geography

Reference type:
Subject Reference
Current Version:
2013
Subject:
Social sciences, Human Geography
Length:
119 words

...sacer A person who is located outside the law, whose life is deemed of no value and who may therefore be killed with impunity. Meaning ‘sacred man’ in Latin, the term originally referred to certain categories of person under Roman law. In recent years it has been elaborated by Italian political theorist Giorgio Agamben to explore the ways in which sovereign power relegates some persons to states of ‘bare life’, i.e. exposed to violence. Geographers interested in prisons, immigrant detention centres, and sites of extreme state violence have used and reflected...

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