John All is an American geoscientist and climate researcher whose work focuses on mountain environments, resource management, and the impacts of climate change on high-altitude communities. In 2014, he survived a 70-foot plunge through a Himalayancrevasse while conducting field-based research. He has held academic and research positions at universities in the United States, South America, and Asia, and has led scientific expeditions on five continents to examine climate change and use of resources.
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