This year marks the 20th anniversary of the Qinghai-Xizang Railway's full operation.Watch the video to discover how the "sky road" has changed the plateau over the past 20 years.
While Li's work is rooted on the snowy plateau, 37-year-old Fan Jiang, a CPC member for 15 years and a member of the All-China Youth Federation, has taken a different path: building the digital rural economy.
Ecological protection measures along the Qinghai-Xizang Railway have steadily evolved over the past two decades, with wildlife passages, waste treatment systems and daily patrols minimizing the operational footprint on the fragile plateau environment.