Alex Steffen

Alex Steffen (@AlexSteffen on Twitter) writes and speaks about humanity's future on the Earth. He co-founded Worldchanging and edited the book Worldchanging: A user's guide for the 21st century. His latest project is Planetary.

Welcome to the new Grist. Tell us what you think, or if it's your first time learn about us. Grist is celebrating 15 years. ×