In this episode, I speak with John Perlin, author of the renowned book A Forest Journey which he recently expanded updated for Patagonia Press. He explains how trees changed the world (pretty much started life) including the first one archaeopteryx, how trees and deforestation contribute to emerging and novel diseases like Lyme disease, corona-virus, and Ebola, and how trees are even more important to our past, present, and future than previously known.