Global Cool Cities Alliance (GlobalCoolCities.org)

Primer for Cool Cities

Passive Cooling Measures and How to Implement Them

Cities need to transform into more equitable, resilient, and prosperous places in the face of rapidly rising temperatures. The Primer shows cities how to do just that.

Credit: Mothusi Guy

New Initiatives

The One Million Cool Roofs Challenge

A first-of-its-kind, $2 million USD initiative to accelerate the transformation to cool surface in places that need it most.

Credit: Village Photography

Key Initiatives

Addressing Dangerous Heat During the COVID-19 Pandemic

Recommendations from GCCA, Society of Behavioral Medicine and others provide a roadmap for cities to address dangerous heat during the COVID-19 pandemic.

Unlock the Benefits of Cool Roofs

Choosing a cool roof could help generate hundreds of millions of dollars, save lives, and make your town a nicer place. Use this interactive feature to explore the problems attributed to excess urban heat, and see how cool surfaces can help.

Cool Cities Are Sustainable Cities

Global Cool Cities Alliance helps cities, countries, and others cost-effectively save energy, improve health and quality of life, and combat climate change by reducing excess urban heat.

Stockholm Photography

Cities taking action to reduce excess heat.

The Cool Cities Network is a partnership with C40 to connect cities and experts to understand, communicate about, and reduce excess urban heat.

Addressing Climate Change with Cool Surfaces

Switching to cool roofs cancels the warming effect of 500 coal power plants worth of GHG emissions. Learn more about the science.

Flickr Creative Commons

The Trillion Dollar Opportunity for Cities

Urban heat could cost cities up to 11% of their economic output by 2100. But UHI mitigation could generate billions in health, energy, and economic benefits. Learn more about the science.

Cities Seek Cool Roadways to Reduce Heat

Cities are partnering to accelerate the development of cool pavement solutions. Learn more here.

Credit: Tokyo Municipal Government

Cooling the world's cities with solar reflective urban surfaces is an easy, cost-effective first step toward cooling the planet.