Learn how to design environmentally sustainable software systems in this keynote presentation that addresses the growing importance of reducing the environmental impact of software applications, especially those incorporating AI features. Explore why software systems affect the environment and discover practical architectural tactics and patterns that can minimize your application's carbon footprint. Examine methods for measuring the "carbon intensity" of software systems and gain actionable insights for implementing green software practices. Understand the current state of software sustainability from a software architect's perspective and identify concrete steps to make your systems more environmentally responsible through thoughtful design decisions and architectural choices.