In Communities #197, "The Long Haul," authors look at what it takes to endure as a communitarian and/or as a community over the long term, as well as what it will take for our species to weather our current challenges. How do we retain relevance and viability, individually and collectively, in changing times? Stories describe past community experiences, current innovations, and future strategies. The issue also contains the fourth installment in Diana Leafe Christian’s series on “Working Effectively with Especially Challenging Behaviors,” a memorial tribute to consensus pioneer Caroline Estes, and reflections on Communities’ history on the occasion of this, our 50th anniversary issue.