Our homes are full of stuff. Our minds are full of information. Our economies are built on never-ending growth while our planet chokes on pollution. In his book, SUBTRACT: The Untapped Science of Less, LEIDY KLOTZ reminds us that across challenges big and small, we neglect a basic way to make things better: we don’t subtract. What is it in our biology, our psychology, or our culture that leads us to often ignore even the possibility? Could the cultivation of subtraction reveal the path to both a better quality of life and an effective response to the climate crisis?