Comment in 2023

Saudi Arabia plans to construct a new city, home to 9 million people. The most relevant aspect is its form, a line with a surprising length of 170 km. We analyse whether this is the best plan for a new city and some inconveniences of the prolonged urban form.

The building sector can address pressing environmental problems by leveraging two major trends: circular economy and digital technologies. Circular building practices emphasize restorative design principles, which can significantly reduce the amount of virgin material used and the environmental footprint of buildings. When combined with digital technologies, circular practices can achieve even higher environmental benefits. Such technologies enable visualization of the environmental impact along the entire value chain, facilitating smart design, production, and use to increase material- and eco-efficiency. However, realizing the full potential of these trends requires more than just technological advancements. Institutional, behavioral, and socio-economic system changes are essential to effect a transition towards a circular and digital economy. To facilitate such a transition, a new form of governance is needed, in which network governance complements conventional public governance. Network governance fosters the formation of coalitions of willing partners that jointly strive towards the goal of system change, creating a fertile ground for a new economic paradigm, behavioral change, government regulation and innovation. The effectiveness of network governance in supporting public governance depends on the specific socio-cultural and political context of a country. However, a thoughtful application of this governance model can facilitate the building sector’s journey towards greater material- and environmental efficiency.

Resilience planning and action is limited to communities with significant technical and administrative capabilities. Engaging communities to co-produce research enables a more equitable distribution of needed tools. A national Community Resilience Extension Partnership linking scientists with place-based planners and emergency managers provides the research-to-practice infrastructure for equitable development of community resilience science and technology.

Priorities and programmes in the City of Cape Town’s Integrated Development Plan (2022–2027) demonstrate progress towards operationalising local level planning for climate-resilient development. These developments provide lessons of process and focus on transformative outcomes for cities seeking equitable and just development while implementing climate change adaptation and mitigation.