Welcome to Episode 3 of the Positive Tipping Points Special! A 7-episode special series on the road to COP30 in Belem, with guest host Liz Courtney.

Heat shouldn’t make home feel unsafe. In this episode, we meet architect and regenerative design leader Caroline Pidcock and advocate Emma Bacon, CEO of Sweltering Cities, to map a practical pathway to cooler, fairer, low‑carbon urban life—one retrofit, street tree, and planning rule at a time. The core idea is refreshingly direct: build less and design better. That means using the buildings and streets we already have and upgrading them with smarter materials, shade, ventilation, and green cover rather than pouring more carbon into new construction.

We dig into the standards gap that leaves wealthier suburbs cooler while hotter, poorer areas get unsafe new builds. Emma explains why building codes must use future climate data, not historical averages, and how minimum requirements—light-coloured roofs, cross‑ventilation, deeper eaves, and shade—lift the floor for everyone. Caroline shows how good design and clear regulation spark creativity, from pocket parks and bikeways to vertical gardens and external skeletal frames that retrofit towers without displacing communities. Health is front and centre: heat waves are predictable disasters, so cities should treat nature as essential infrastructure, with “social green space” where people actually move and gather.

We also zoom out to systems. Faster, more frequent trains can relieve pressure on overheated cores, connect regional towns, and stitch biodiversity corridors along rights of way. Accounting for true social and environmental costs flips the economics toward efficient, cool, and equitable design. Throughout, our guests share hopeful signals: scaled social housing upgrades, community-led projects, and movements shifting mindsets inside the professions.

If you care about urban planning, climate resilience, social housing, or just sleeping better on hot nights, this conversation delivers clear steps and real optimism. Subscribe, share with a friend who sweats through summer, and leave a review with the one heat-fighting change you want your council to adopt next.

Your Hosts:
Dan Leverington
Loreto Gutierrez

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Regenerative Cities in a Heating World, with Emma Bacon and Caroline Pidcock