Mayors Kate Gallego of Phoenix, Arizona, and Joy Belmonte of Quezon City, the Philippines, are leading the charge in addressing the increasing threat of extreme heat in cities around the world. As temperatures continue to rise and heatwaves become more frequent and severe, the impact on city residents is becoming more pronounced.
The recent heatwaves that have shattered temperature records in cities like Phoenix and Quezon City have highlighted the urgent need for action. Extreme heat is now responsible for nearly half a million deaths each year, with vulnerable populations such as the elderly, children, outdoor workers, and low-income communities being disproportionately affected.
In response to this growing threat, Mayor Gallego and Mayor Belmonte, along with over 30 other mayors from C40 Cities, have come together to launch the C40 Cool Cities Accelerator. This initiative aims to accelerate bold and inclusive climate action to address the impacts of extreme heat in cities around the world.
Despite the differences in climate and geography between Phoenix and Quezon City, both cities are facing similar challenges when it comes to rising temperatures. From implementing early-warning systems to coordinating emergency responses, cities in the Accelerator are taking immediate steps to protect their residents from the dangers of extreme heat.
In Phoenix, the creation of the Office of Heat Response and Mitigation, expanded access to chilled water stations, and the opening of cooling and hydration centers are just some of the measures being taken to safeguard residents. Similarly, Quezon City is mapping heat-vulnerable communities, developing a citywide heat-health action plan, and introducing heat-tolerant crops to mitigate the impact of extreme heat.
Looking ahead, cities in the Accelerator are focused on building long-term resilience to extreme heat. This includes integrating cooling measures into building codes, redesigning streets for shade and airflow, and expanding green spaces and tree canopies. By implementing initiatives such as reflective ‘cool pavements,’ tree planting, and shade structures, cities like Phoenix and Quezon City are working towards creating cooler and more livable urban environments.
Collaboration is key to the success of the Cool Cities Accelerator, with cities sharing data and design ideas to create more effective solutions. By working together, cities can move faster and more efficiently in addressing the challenges posed by extreme heat.
Ultimately, the goal of the Cool Cities Accelerator is to build cities that are not only cooler but also more equitable. By acting now and implementing solutions that prioritize the well-being of all residents, cities can create a more sustainable future for generations to come. The time to act is now, and by working together, cities can make a significant impact in the fight against extreme heat and the climate crisis. In a world where the effects of climate change are becoming increasingly evident, the Mayors of C40 cities have taken a stand to combat global heating in a proactive and strategic manner. These leaders understand the urgency of the situation and are committed to using a science-based and people-focused approach to limit global heating in line with the Paris Agreement.
The Paris Agreement, adopted in 2015, aims to limit global warming to well below 2 degrees Celsius above pre-industrial levels, with an aspiration to limit the temperature increase to 1.5 degrees Celsius. The Mayors of C40 cities recognize the importance of this agreement and are determined to do their part in achieving these goals.
One of the key principles of the approach taken by the Mayors of C40 cities is to build healthy, equitable, and resilient communities. This means that their efforts are not only focused on reducing greenhouse gas emissions and limiting global heating, but also on ensuring that the benefits of these actions are felt by all members of their communities.
By prioritizing the health and well-being of their residents, these Mayors are not only addressing the immediate impacts of climate change, but are also laying the foundation for a more sustainable and equitable future. This people-focused approach ensures that vulnerable populations are not left behind and that everyone has access to clean air, clean water, and green spaces.
In addition to focusing on people, the Mayors of C40 cities are also committed to using a science-based approach to guide their decision-making. This means relying on the latest research and data to inform their policies and initiatives, ensuring that they are effective in reducing emissions and building resilience.
Overall, the commitment of the Mayors of C40 cities to using a science-based and people-focused approach to limit global heating is a positive step towards creating a more sustainable and equitable future for all. By working together and sharing best practices, these leaders are paving the way for a world where cities can thrive in harmony with the planet.

