In July a Glacial Lake Outburst Flood occurred in the Lende Valley, destroying the bridge between the border posts of Nepal and China, and carrying off 200 vehicles and about 20 people in the flood. This triggered memories of research 35 years ago, as Tamang villagers took their sheep to Lende, also gathering medicinal herbs. I will reflect on aspects of human-environmental relationships through different thematic phases of research. These cover development paradigms of productive intensification and biodiversity protection; ontological and multi-species turns in sentient landscapes; Zomia sovereignties; renewable energy innovation; labour migration, agricultural abandonment, forest regrowth, and climate resilience.