They are home to wolves, elks and tigers: the boreal forests of the north. They store more carbon than all the rainforests put together and, as such, are crucial for the world’s climate. Where permanently frozen ground is mostly covered in metre-high snow, and summer is dominated by drought, conifers and ground-cover plants are accustomed to fire. Some plants even need the flam...。3位旅行者沿着广西和云南的临边公路自助出发20天,行进2800公里完成任务挑战、解锁行程物资,来感受硬核挑战下的纪实边境游。。