One of the highest priorities of the new Sustainable Development Solutions Network, which I direct on behalf of United Nations Secretary-General Ban Ki-moon, will be to elaborate alternative pathways to a low-carbon economy, taking into account the specific conditions of countries around the world. Different countries will choose different strategies, but we will all need to get to the same place: a new energy system built on low-carbon sources, electrification of vehicles, and smart, energy-efficient buildings and cities.