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Lunenburg Part 2 - Section 5 - Social Vulnerability - August 30.pdf

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The variables chosen were organized into five categories - social, human, institutional, natural<br />

and economic resources - each with several relevant variables. The following table lists the<br />

resource being evaluated, variables chosen, and indicators used to measure those variables.<br />

Resource Definition Variables<br />

<strong>Social</strong><br />

Human<br />

Institutional<br />

Natural<br />

Economic<br />

People’s relationships with each other through<br />

networks and the associational life in their<br />

community<br />

Skills, education, experiences and general<br />

abilities of individuals combined with the<br />

availability of ‘productive’ individuals<br />

Government-related infrastructure (fixed<br />

assets)—utilities such as electricity,<br />

transportation, water, institutional buildings and<br />

services related to health, social support, and<br />

communications<br />

Endowments and resources of a region<br />

belonging to the biophysical realm, including<br />

forests, air, water, arable land, soil, genetic<br />

resources, and environmental services<br />

Financial assets including built infrastructure as<br />

well as a number of features enabling economic<br />

development<br />

Community attachment, <strong>Social</strong><br />

cohesion<br />

Productive population, Education<br />

infrastructure, Education levels,<br />

Political action<br />

Utilities infrastructure, Emergency<br />

preparedness, Health services,<br />

Communications services, Potable<br />

water quality<br />

Potable water quantity, Surface<br />

water, Soil conditions, Forest<br />

reserves, Fish reserves<br />

Employment levels and<br />

opportunities, Economic assets<br />

It is important to note that the goal of this case study was to assess the overall adaptability of a<br />

Canadian rural community to the incremental impacts of climate change, with a focus on<br />

agriculture. While some aspects of the study will not be relevant to the work at hand, the<br />

conceptual basis and methodology are nonetheless instructive.<br />

Andrey, Jean, and Brenda Jones. “The Dynamic Nature of <strong>Social</strong> Disadvantage:<br />

Implications for Hazard Exposure and <strong>Vulnerability</strong> in Greater Vancouver.” Canadian<br />

Geographer 52, no. 2 (2008): 146-168.<br />

This 2008 study presents an assessment of social vulnerability to natural hazards in Great<br />

Vancouver, British Columbia. The hazards considered in the study are earthquake-induced<br />

liquefaction, wildfires and noise pollution. Variables were selected based on literature regarding<br />

natural hazards and environmental equity. Other considerations included the particular social<br />

composition of Greater Vancouver, and available Census data at the Census tract level for three<br />

census years: 1986, 1996 and 2001. The 19 variables chosen include income, employment,<br />

age, gender, ethnicity, family composition and dwelling attributes.<br />

Raw data were converted to incidence rates for each census tract (e.g. number of seniors in a<br />

tract as a percentage of the tract’s total population). Then, principal components analysis (PCA)<br />

was applied to the data to reveal groups of variables with similar spatial patterns. The number of<br />

variables is then reduced those components that account for the bulk of the variance in the data.<br />

The principal components were subjected to an orthogonal varimax rotation to improve their<br />

interpretability. Five principal components accounted for 88% and 86% of the data’s variance for<br />

1986 and 2001, while four components accounted for 79% of the data variance for 1996.<br />

The information obtained from the PCA was then mapped so that patterns of social<br />

disadvantage could be compared both among census years, and to maps indicating hazard<br />

exposure.<br />

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