This book is an open access assembles cutting-edge research in media and communication exploring AI infrastructures and sustainability. It builds upon and expands perspectives on media infrastructure, addressing critical issues such as environmental impacts, economic concentration, and social justice - areas that have not been comprehensively examined under the umbrella term "sustainability" within discussions on AI. The authors explore the complex social, economic and material processes through which AI formations take shape, and offer novel perspectives on the entanglement of digital media, AI and sustainability discourses as they manifest in the shaping of futures with AI.