Every Thursday, a new episode of Living Planet brings you environment stories from around the world, digging deeper into topics that touch our lives every day. The prize-winning, weekly half-hour radio magazine and podcast is produced by Deutsche Welle, Germany's international broadcaster - visit dw.com/environment for more.
Lower prices helped democratize air travel, but flying is one of the most carbon-heavy actions a person can take. We look at Sweden's No Fly campaign, take a journey on a night train and visit a city in Spain that is mostly car free.