Human beings have made enormous changes to Earth, reshaping it, developing it and generally altering it so much that in many cases its pre-human condition has become unrecognizable. In this far-ranging conversation, ecologist Erle Ellis and landscape architect Bradley Cantrell discuss what this means for ecology and architecture … and how we might think about protecting our planet.

4 Critical mistakes that inventors make

The history of innovation isn’t a straight line, but a squiggly, winding path. In How We Got To Now, my new book and PBS documentary series, I highlight some of the creative mistakes that helped shape our world.