Another increasingly relevant issue is disaster preparedness. In Rethinking Readiness, Jeff Schlegelmilch, director of the National Center for Disaster Preparedness at Columbia University’s Earth Institute, outlines five types of megadisasters that threaten to overwhelm our capacity to respond. Key among these are pandemics; the book also addresses climate change, critical infrastructure failure, cybersecurity threats, and the threat of nuclear conflict. How can we build better systems for a more resilient future?