1807 region’s capacity for large-scale transformation. With the region successfully regreened, Sudbury is now positioned for a second transformation: moving from environmental recovery towards a more diversified, knowledge-based, and resilient economy beyond mining. This paper argues that Sudbury can build on its mining strengths to underpin broader regional prosperity. The proposed transition does not reject mining; rather, it reframes mining as an enabler of new economic pillars, including subsurface innovation, environmental remediation, clean technologies, and Indigenous-led stewardship. The Designing Sustainable Prosperity (DSP) framework offers a structured approach to making this transition practical and measurable, helping the region achieve lasting, shared prosperity without fostering dependence on finite mineral extraction. 2. 'THE WHY': EVIDENCE OF THE PROSPERITY PARADOX Recent OECD evidence and regional sustainability assessments indicate that Northern Ontario exhibits characteristics of a "prosperity paradox". Mining subregions generate higher income and economic activity than non-mining regions, but this prosperity is not consistently translated into innovation, equity, infrastructure quality, or long-term resilience. In other words, the region has valuable assets and capabilities, yet its development outcomes remain uneven. One indicator of this challenge is the gap between research and technical capability, on the one hand, and protected or scalable intellectual property, on the other. Although mining innovation is often protected through trade secrets, proprietary processes, and confidential operational knowledge rather than patents, patent output still provides a useful signal of how effectively regional expertise is being formalized and scaled (OECD, 2025). OECD data suggest that Sudbury and Northern Ontario remain below rural Canadian and OECD mining-region benchmarks on this measure (Table 1). Table 1 – Gaps in the innovation ecosystem (OECD, 2025) Metric Sudbury / Northern Ontario Rural Canadian Average OECD Mining Regions Average Patent Output (per million residents) 35 55 44 2.1 Income and Social Disparity While mining provides an economic premium in parts of Northern Ontario, benefits remain unevenly distributed and structural barriers persist: ● Median Income: Residents in mining subregions earn 6% more than those in non-mining areas (2020 data). ● Indigenous Income Gap: Indigenous Peoples in mining subregions earn 16% more than those in non-mining areas; however, a 14% income gap persists relative to the regional average. ● Social Barriers: Indigenous communities are twice as likely to live in poor-quality housing and face the highest proportion of long-term drinking-water warnings in Canada, indicating that mineral wealth has not been fully utilised to address basic service deficits.
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