Who is Billy Barr and how has he single-handedly produced remarkable evidence of climate change? For the past four decades, Barr has lived alone in a cabin in the remote, ghost town of Gothic, Colorado in the Rocky Mountains, one of the United State’s coldest locations. With no external incentives, or formal training in the field, he began keeping meticulous snowfall records to escape boredom during the harsh winter months. Now his extensive research is invaluable to the Rocky Mountain Biological Lab and many other scientists around the world. This short video offers a compelling glimpse of Barr’s unconventional life and contributions.