Ashrith Domun in a chemical engineer working on the de-carbonization of vehicles. Craig Smith is a retired engineer who served as president of a construction corporation and more recently cao-authored a book with William Fletcher: "Reaching Net Zero..” Ashrith reports that the larger the vehicle, the more difficult the challenge in making it move sustainably. But trains are fairly easy to decarbonize; they just change over to. green hydrogen, and this can be done within the next five years. For the video, audio podcast, transcript, and comment column: https://tosavetheworld.ca/episode-400-tomorrows-transport/.