Is cashmere wool a sustainable material?

Cashmere wool is produced by goats and is a renewable resource. We can always get more as it grows on goats. But it is not sustainable. Goats have a devastating impact on the environment, eating vegetation right down to its roots and killing the plant, and their hard hooves tear up the topsoil. China produces a lot of cashmere but the cashmere region is beginning to look like the dust bowls of the US in the 1930s. As the goat's feed dies away, and the topsoil blows away, there may be no arable land left for anything.

See the link below.