This research evaluates passive cooling strategies—like reflective roofs and shading—to reduce heat in homes without air conditioning. Using simulations of thousands of combinations under current and future climates, it identifies optimal solutions for cities like Ottawa, aiming to protect vulnerable populations from rising heat risks due to climate change.

This research evaluates whether reflective cool roofs can reduce indoor temperatures and improve health in climate-vulnerable communities. A global randomised controlled trial across four countries will assess impacts on physical and mental health, productivity, and hospitalisations, providing evidence on whether this affordable intervention is cost-effective and capable of saving lives.