Reading The Sixth Extinction: An Unnatural History by Elizabeth Kolbert made me aware of something potentially as disruptive as global warming. In addition to enhancing and accelerating climate change, carbon dioxide is changing the pH of the oceans. Last fall, Jessie Kawata and I had the opportunity to speak with Dr Jerry Schubel, President and CEO of the Aquarium of the Pacific in Long Beach, California. During that ‘Coastal Conversation,’ we proposed that design is a critical component of any adaptation action plan, particularly in addressing sea level rise. Now I realize we underestimated the role of design…..since there is no ‘technology fix’ to ocean acidification, how can we apply design thinking to fundamentally change the systems that produce and release carbon dioxide?