How to make transportation quieter, cleaner and cheaper

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Doreen Orishaba |

TED Countdown Summit 2025

• June 2025

When Doreen Orishaba helped build Africa’s first electric car in 2011, skeptics dismissed it as a “toy for the Western world.” Now she’s running dozens of electric buses across Kenya and Rwanda, moving thousands of passengers to work every day on zero-exhaust vehicles powered by near-silent engines. She breaks down what it actually takes to scale clean transport — and why skipping the gas station pit stop is closer than you may think.