• 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.

Global Climate Change
Global climate change
Introduction

The threat of global climate change due to increased anthropogenic emissions of greenhouse gasses has become one of the defining environmental issues of the twenty-first century. At the same time, the scientific community, policy makers and the general public have become aware that even in the absence of anthropogenic factors the climate is prone to significant shifts due to natural causes. A tangible driver of this concern is the fact that global temperatures have increased by 0.76°C since the mid-nineteenth century and 11 of the 12 years between 1995 and 2005 were the warmest since 1850, the year when widespread reliable records become available (IPCC 2007). It is fair to say that humanity is feeling the heat of climate change. ...

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