A new and far-reaching study of how to transition the global energy system to one with net-zero carbon emissions by 2050 highlights the need for a dramatic acceleration in the pace and scale of renewable-energy and grid investment, while simultaneously halting new fossil-fuel supply projects and abandoning any new unabated coal plants. Published by the International Energy Agency (IEA) as part of preparations for the twenty-sixth Conference of the Parties, or COP26, climate gathering scheduled for Glasgow, Scotland, in November, the ‘Net Zero by 2050: A Roadmap for the Global Energy Sector’ report concludes that the world has a viable, albeit narrow, pathway for limiting the global temperature rise to 1.5 °C above preindustrial levels.