- Stadler unveils first hydrogen train for U.S., announces order for up to 29 more. California aims to make all its passenger rail 100% emissions free by 2035 and this order and option will be a key part of that effort. https://www.trains.com/trn/news-reviews/news-wire/stadler-unveils-first-hydrogen-train-for-u-s-announces-order-for-up-to-29-more/?h22= 877 comments upliftingnews