The potential of digital technologies to help reduce GHG emissions is generating a lot of enthusiasm. One recent analysis claimed that digital technologies could contribute as much as one third of the 50% GHG reduction required by 2030—more than the current carbon footprints of the European Union and the United States combined. Technologies such as 5G, the Internet of Things (IoT), drones, augmented and virtual reality, and artificial intelligence (AI) are being applied across a spectrum of applications: in transportation, manufacturing, buildings, agriculture, and energy production. Digital technologies have the potential for reducing emissions. Which technologies hold the biggest promise? Which digital technology applications are leading to significant emissions reduction? How are digital technologies driving structural change and transforming traditional business models? What behavioral and organizational challenges arise when implementing digital technologies? How can large energy companies accelerate the scaling up of innovative technologies incubated in start-ups?