In early March, Hywel participated in the “Hot But Habitable” workshop at the Lorenz Centre in Leiden. The meeting was highly interdisciplinary, bringing medical doctors and city resilience planners together with climate scientists and sociologists (Hywel was the token geek!). It was also managed in an unusual way – for science, at least. There were no formal presentations and no Powerpoint, just a lot of open discussion. The result was a creative and stimulating event with a lot of new ideas. Since returning from Leiden, new collaborations with European partners are being developed to explore the use of social sensing to monitor the social impacts of extreme heat. Check out the Global Heat Health Information Network to find out more about heatwaves and the various projects that are going on.