Struck by them, Arntzen compiled Nahanni Reforestation, a book of the photos of this never-before-seen subculture. The striking images of stylish and hardworking ’70s hippies in bandanas ...

This photo of a forest in Alsace, France, shows dark green conifers interspersed with light green broad-leafed trees. The conifers, a favorite of reforestation programs, might actually be adding ...