How do we know about the extreme heat? Writers, scholars, and artists come together to tackle this question in this interdisciplinary zine across eight chapters. Issue 2 of Heat Diary - "Practices" focuses on ambient vulnerabilities in both urban and rural contexts in the USA, the UK, and France by mobilizing the insights of social science, forensic architecture, cultural criticism, and aesthetic analysis. With original images, conceptual development, and grounded understandings of the personal experiences and inequalities involved in societies adapting to extreme temperatures, this volume explores this topic in a way that is both unconventional and attentive to this pressing concern.