We systematically review the impact of polyurethane insulation and polyurethane household products on the indoor environmental quality of buildings. The review breaks down polyurethane products into constituent compounds (isocyanate, polyol, flame retardant, blowing agent and catalyst) as well as secondary emissions, and discusses their implications on human health. Concentrations of compounds emitted from insulation, and household materials, measured in laboratory experiments and case studies are presented in the context of the built environment.

Cities are crucial sites for achieving socio-technical transitions in technology and infrastructure systems. Raising building energy efficiency (BEE) through new construction or retrofitting holds particular relevance to sustainability transitions since this requires diffusion of new technologies and energy management practices. In pursuit of this, city policymakers around the world are increasingly utilising mixes of multiple policy instruments.

A guide with these contents

• Sustainable and accessible ways to keep cool
• Key messages
• How does heat affect the body?
• Doesn’t air conditioning solve the problem?
• How can electric fans help?
• When shouldn’t electric fans be used?
• What if it’s too hot to use a fan or there is no power?
• How can buildings help keep people cool without the need for air conditioning?
• What should governments, employers, services and communities do to promote
• ‘fan-first’ cooling?
• Sources