The first step in a very long commute to the bottom of the planet: Leaving home in London. Our climate reporter Raymond Zhong is joining nearly 40 scientists on an expedition to Antarctica’s fastest-melting glaciers. And he sets off with one big question about the trip ahead. Leave your own questions for our Climate team in the comments, and follow dispatches from Raymond and our photographer, Chang W. Lee, at nytimes.com/antarctica. Video by Raymond Zhong, Christina Thornell, Kassie Bracken, Jon Miller, Leila Medina and Phil Caller/The New York Times #travel #antarctica #thwaitesglacier #climate #nytantarctica