“Nothing is inevitable; everything’s evitable; and that’s really important. That’s one of the reasons we study history, and we see that very specific decisions resulted in specific outcomes. It didn’t just happen. We’re very fatalistic. People assume things are the way they have to be and they’re not,” Harvard Professor Michael Pollan told Terry Tempest Williams, writer-in-residence at HDS, during an online conversation Monday, “The Climate of Consciousness.”