Billy Barr, stylized as billy barr,[2] is an American amateur scientist known for his collection of over 50 years of data on snow levels, temperatures and animal migration in the Colorado Rocky Mountains.
Barr's data collection is recognized as critical evidence of the effects of climate change.
[5] In 1972, as a student researcher from Rutgers University, he took a short-term job[4] at the Rocky Mountain Biological Laboratory measuring water quality near Crested Butte in the West Elk Mountains, Colorado.
[3][8] In the mid 1970s, with the initial intention of escaping the boredom of living in the remote location of Gothic,[3] Barr began meticulously collecting environmental data by measuring the snow depth, temperatures and noting the arrival of different species in the spring.
[10] In late 1990s, the lab's resident ecologist David Inouye recognized the significance of Barr's data and began sharing it with other scientists.