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Alpine ecosystems throughout the world have been heavily impacted by human activities, especially during the past 20 to 30 years with the exponential growth of mountaineering, trekking, and adventure tourism to remote mountain regions. The most common impacts include the removal of slow-growing alpine shrubs and cushion plants by lodge owners, porters, and climbing/trekking parties for use as fuel, with associated accelerations in soil loss and decreased slope stability. Other forms of disturbance include turf cutting; increased numbers of pack animals to cater to tourists; accelerated water-borne health hazards due to improper human waste disposal; and the growing presence of landfills and human waste disposal pits in the vicinity of villages along the main trekking routes. More recently, factors related to globalisation, outmigration, and the harvesting of the “caterpillar fungus” yarsugumba (Ophiocordyceps sinensis) and other medicinal and aromatic plants are causing high levels of disturbance to alpine ecosystems in Nepal.

This lecture will discuss Byers’ work over the years in Nepal and Peru to understand the causes of alpine degradation; engagement with local communities to protect and restore their alpine environments; and ongoing research to better understand the contemporary impacts of new markets and globalisation on even the most remote of Nepal’s high mountain alpine ecosystems. The presentation will conclude with a brief review of his efforts over the past 10 years to develop science-based, community-driven approaches to decreasing the risk of climate change-related hazards in high mountain regions, such as glacial lake outburst floods (GLOF) and englacial conduit outburst floods.

 is a mountain geographer, conservationist, and mountaineer specializing in applied research, high altitude ecosystems, climate change, and integrated conservation and development programs. He received his doctorate from the University of ŷ���ڱ���Ƶ in 1987, focusing on landscape change, soil erosion, and vegetation dynamics in the Sagarmatha National Park. He joined (TMI) in 1990 as Environmental Advisor, and worked as Co-Manager of the Makalu-Barun National Park (Nepal Programs), Founder and Director of Andean Programs, Director of Appalachian Programs, and as Director of Science and Exploration. In 2015 he joined the (INSTAAR) at the University of ŷ���ڱ���Ƶ at Boulder as Senior Research Associate, and currently works on a range of research teaching projects in the Himalayas, Andes, Appalachian, and Rocky Mountains. Dr Byers has published widely on a range of scientific topics, and is an author and editor of (2013).