This document provides an overview of global developments in energy and sustainability from 2015-2017. Some key points covered include the Paris Climate Agreement in 2015, progress and challenges in implementing the UN's Sustainable Development Goals, and shifts in energy markets and technologies driven by climate policies, renewable energy growth, and other factors. It discusses perspectives from organizations like the IEA, UN, and others on trajectories for renewable energy adoption and decarbonization. The document frames 2018 and beyond as an opportunity to further scale up efforts across sectors and levels to accelerate the transition to a more sustainable energy and economic system globally.