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Social vulnerability to climatic shocks is shaped by urban accessibility

Source(s):  Taylor and Francis

Despite growing interest in urban vulnerability to climatic change, there is no systematic understanding of why some urban centers have greater social vulnerability than others. This article examines whether the social vulnerability of Amazonian cities to floods and droughts is linked to differences in their spatial accessibility. The accessibility of 310 urban centers was assessed using a travel network and derived measures of connectivity and geographical remoteness. Results found that 914,654 people live in roadless urban centers (n = 68) located up to 2,820 km from their state capital. 

The researchers then tested whether accessibility measures explained interurban differences in quantitative measures of social sensitivity, adaptive capacity, and an overlooked risk area, food system sensitivity. Accessibility explained marked variation in indicators of each of these dimensions, which showed an underlying spatial basis for social vulnerability. For instance, floods pose a greater disease risk in less accessible urban centers because inadequate sanitation in these places exposes inhabitants to environmental pollution and contaminated water, exacerbated by poverty and governance failures.

Exploring the root causes of these spatial inequalities, the article shows how remote and roadless cities in Amazonia have been historically marginalized and their citizens exposed to structural violence and economic disadvantage. Paradoxically, the article finds that places with the highest social vulnerability have the greatest natural and cultural assets (rainforest, indigenous peoples, and protected areas). The article concludes that increasing accessibility through road building would be maladaptive, exposing marginalized people to further harm and exacerbating climatic change by driving deforestation.

  • Social vulnerability to climatic shocks is shaped by urban accessibility
  • Publication date 2017
  • Author(s) Parry, Luke; Davies, Gemma; Almeida, Oriana; Frausin, Gina; de Moraés, André; Rivero, Sergio; Filizola, Naziano; Torres, Patricia
  • Number of pages 20 p.

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