The Ballroom, an art venue in Marfa, Texas, has just announced the program for its annual weekend-long program of talks, called the Marfa Dialogues. This year the events address the issue of environmental sustainability. Keynote speakers include Michael Pollan, author of The Omnivore’s Dilemma and In Defense of Food, among other books, and Rebecca Solnit, the author and activist who recently published the book A Paradise Built in Hell. To see the full program, which takes place during the weekend of August 31–September 2, click here.