People around the world are demanding clean air -- and cities are starting to respond, says electrification advocate Monica Araya. She takes us on a world tour of urban areas that are working to fully electrify their transportation systems over the next decade, shifting to emission-free motorcycles, cars, buses, ferries and beyond. See what a future without the internal combustion engine could look like -- and what it will take to get there.For the full text transcript, visit ted.com/podcasts/speed-and-scale-transcript Hosted on Acast. See acast.com/privacy for more information.

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