What are the promises and perils of future digital technology for the planet? The information communication technology (ICT) industry is revolutionizing the way we work, learn, entertain and live. Although our electronic devices do not spew out black smoke, they are not bereft of environmental impact. In this talk, I will share some of our brain-inspired innovations for "green" electronics. Energy-efficient systems that mimic biological neuronal networks can revolutionize electronics by enabling low power execution of AI workloads on all connected cyber-physical systems such as autonomous car driving, intelligent agents, smart transport, smart healthcare, and smart everything. I will cover aspects from materials, devices, system architecture to demonstrators. This work is conducted in the framework of the EU H2020 NEURONN project, www.neuronn.eu.