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CITY OF JOHANNESBURG CLIMATE CHANGE ADAPTATION PLAN - GAUTENG, SOUTH AFRICA

WSP assesses climate changes over the next century.

 

The City of Johannesburg Metropolitan Municipality is a metropolitan municipality that manages the local governance of Johannesburg, South Africa. Johannesburg is the largest city in South Africa (by population), and the provincial capital of Gauteng, the wealthiest province in the country.

Overview

WSP was tasked with undertaking a city-wide assessment of the risks posed by projected climatic changes over the next century (both to physical infrastructure as well as broader socio-economic impacts) and to develop an adaptation plan to pro-actively address these risks.

The challenge

If climate variability increases as projected, it is essential that city managers understand how this will impact on the various urban sectors and the resultant vulnerabilities. This insight will enable managers and engineers to pro-actively plan for climate change, rather than react when the damage has already been done.

Our approach/services

WSP’s comprehensive risk assessment of the impacts of climate change on all sectors of Johannesburg covered:

  • Critical physical infrastructure
  • Natural environment
  • Health
  • Finance and the economy
  • Disaster management
  • Community development and livelihoods

Outcome

Ten high priority risks were identified, such as increased incidence of heat-related death in the elderly, increased risk of malaria cases, and increased failure of stormwater infrastructure. Critical adaptation actions were identified and prioritised on the basis of a preliminary cost-benefit assessment. Proposed actions included improved tracking of health impacts across municipal boundaries; and re-assessing the technical specifications for stormwater infrastructure.