This document discusses perspectives on sustainability and the challenges of governing emerging technologies. It notes that the world is becoming more complex as natural systems integrate with human and built systems. Sustainability is an important social concept but its definition remains ambiguous. Emerging technologies like life extension, cognitive enhancement, and geoengineering pose huge governance challenges. Technological change is a major driver of Earth system changes but is not well-studied. Military needs are a major driver of technological evolution. The document calls for technology analysis and "technical CSR" to help manage technological change and its implications.