It was an interesting experience to speak on a panel addressing the climate change crisis as a national security issue, at the ABA Annual Review of National Security Law Conference, on Nov. 17, 2022, along with Mark Nevitt of Emory Law, Erin Sikorsky of the Center for Climate and Security, and Marcus King of Georgetown University. With over 300 people in the room, mostly national security lawyers, there was a surprising mix of views on how seriously one should take climate change as a threat to national security, or as an issue that implicate national security thinking! Very interesting.