Preliminary Planetary Defence Decision Tree

March 2023

The Planetary Defence Conference (PDC) series provides a venue for testing humanity’s capabilities in responding to planetary defence emergencies.

As part of PDC 2023, the Outer Space Institute has developed an interactive decision tree, a supporting supplemental document, and an html tree overview. The tree helps decision makers to think about some of the critical decision points that exist before and during a planetary defence emergency, with the intent of informing policy and agreements now before we are forced to make those decisions in a ‘live’ situation.