Today’s Solutions: December 15, 2025

A new report shows that over 100 cities around the world are running on predominantly clean energy. That figure is up from 40 in 2015, and it shows that more and more cities—from Seattle, Washington to Inje, South Korea—are ditching fossil fuels and turning to renewables than ever before. Take a look here to see what other cities make up the 100 greenest cities in the world in terms of renewable energy.

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