Last weekend, hundreds of young people boarded a specially chartered train in Amsterdam to travel to Glasgow ahead of the United Nations COP26 climate summit.

Among them were scientists, activists and policy makers. In a Nature Podcast special, we boarded the train to catch up with some of them - to talk about their science, their motivations and their message.

News: All aboard the climate train! Scientists join activists for COP26 trip

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Podcast special: onboard the climate train to COP26