In my new book, The Godfather of Green: An Eco-Spiritual Memoir, I included an Epilogue in the form of an open letter to today’s young climate strikers. What had I learned from the environmental and green building movements that I could share with them, that would help them to confront humanity’s most significant challenge: living together peacefully on a fully habitable planet?

After I began to write books about green building in 2006, I began speaking internationally, first in Australia, soon thereafter in Europe, then Singapore, the Middle East and finally Africa. During this decade as an international keynote speaker, I had many adventures. Here’s one of them.

By 2005, I knew that green building represented the future of commercial property development, but there was very little construction going green in Arizona when I arrived in the spring of 2006. It took a few years, but developers finally got the message.