A projected timeline for transitioning to 100% wind, water, and solar energy. Credit: Jacobson et al. / One Earth Ten years after the publication of their first plan for powering the world with wind, water, and solar, researchers offer an updated vision of the steps that 143 countries around the world can take to attain 100% clean, renewable energy by the year 2050. The new roadmaps, publishing December 20 in the journal One Earth , follow up on previous work that formed the basis for the energy portion of the U.S. Green New Deal and other state, city, and business commitments to 100% clean, renewable energy around the globe—and use the latest energy data available in each country to offer more precise guidance on how to reach those commitments. In this update, Mark Z. Jacobson of Stanford University and his team find low-cost, stable grid solutions in 24 world regions encompassing the 143 countries. They project that transitioning to clean, renewable energy could reduce worldwide energy needs by 57%, create 28.6 million more jobs than are lost, and reduce energy, health, and climate costs by 91% compared with a business-as-usual analysis. The new paper makes use of updated data […]

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