Plan, Plant, Planet is an article written by Terence McKenna, the ethnobotanist and psychonaut, for the Whole Earth Catalog in 1989 on the need for humans to look towards plants and their concepts for solutions to solve the crises of the 21st century.<p>Humans are just getting solar power to scale, yet plants pioneered generating energy from the sun billions of years ago. What other technologies and processes can we learn from plants to help set the planet back on the right track?