2023 was the world’s hottest year on record, and temperatures are expected to continue heating up. Cities, where more than half of the world lives, are contending with this extreme heat. But some places, such as Singapore, are looking for ways to modify aspects of their cities to make them more comfortable for people to live. The Cooling Singapore project is creating a hyper detailed digital twin of the city-state to be able to test the effectiveness of new methods the city would want to implement. WSJ’s Alex Ossola explains what they’ve learned, and how it can help us understand how more cities in the future might make changes to combat heat.  What do you think about the show? Let us know on Apple Podcasts or Spotify , or email us: [email protected]  Sign up for the WSJ's free The Future of Everything newsletter. Further reading: The Cooling Singapore 2.0 project, funded by the Singapore Nat ional Research Foundation, is led by the Singapore ETH Centre in partnership with Cambridge CARES, the National University of Singapore (NUS), Singapore Management University (SMU), the Singapore-MIT Alliance for Research and Technology (SMART), and TUMCREATE (established by the Technical University of Munich). 2023 Was the Hottest Year on Record  Earth Just Had Its Hottest Month Ever. How Six Cities Are Coping.  How Reflective Paint Brings Down Scorching City Temperatures  These Photos Show How Urban Growth Fuels Extreme Heat  Learn more about your ad choices. Visit megaphone.fm/adchoices