GEOS2121 Lecture Notes - Lecture 2: Cultural Ecology, Social Forces, Earth System Science
17 Aug 2018
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Document Summary
Introduction to planetary boundaries: earth systems in crisis: how can we think about the earth system as a political ecology, political ecologies in west africa (a pivotal example, key themes and questions of political ecological analysis. Challenges the concept of one single dominant perspective in dealing with environmental resource management. Approach to famine learned in previous class: social + economic + political factors and their interactions, place specific, consideration from spatial and temporal scales. Political ecology contrasts the way of thinking about planetary boundary. Rockstrom et al (2009) planetary boundaries (earth scientist approach) Holocene was a long period of stable environment and climate systems. 9 earth systems and processes that have boundaries. Humans have to maintain these boundaries in order to flourish and survive. If these planetary boundaries are crossed, these earth sub-systems may react in non-linear, abrupt ways, perhaps shifting into new states. Climate change is defined by co2 concentration (350 ppm)
