Gallery Ice is melting and permafrost is thawing in the Nepal Himalaya Permafrost thaw slump in the Kali Gandaki River, Nepal Himalaya The moraine-dammed proglacial lake of the largest valley Laigu Glacier, Tibet High summer melt flow and sediment from the Dongkemadi Glacier, Tibetan Plateau (photo by S.Wang). Ice avalanche and landslide into moraine-dammed glacial lakes may trigger displacement waves and GLOFs (The Bienong Tsho, Jiali county, Tibet) A dying valley glacier in Ranwu, southeastern Tibet Thermal subsidence in the headwater of the Yangzte River Large-scale permafrost thaw slumps in the Fenghuoshan region on the Tibetan Plateau (34. 71N, 92.90E) (Photo by C. Song) Thermal erosion landforms in the source region of the Yangtze River, central Tibetan Plateau Proglacial area in the headwater of the Yangtze River Braided channel of the Buqu river, originating from the Jiangendiru Glacier, Tibetan Plateau Bank erosion in Buqu River, central Tibetan Plateau Dongfeng Li surveying the river channel of the headwater of the Mekong using UAV and RTK Dongfeng Li and colleagues surveying the river channel of the headwater of the Yangtze using UAV and RTK