A documentary film airing on PBS looks at New Mexico’s Jemez range, and gently and sparely shows how changing climate affects these unique “sky islands.”
The first casualties as the Earth heats are islands. Rising seas chew away their edges and, in a few cases, swallow them whole.
But not all islands are surrounded by water. Nature writer Weldon Heald coined the term “sky island” in 1967 as a poetic expression for the disconnected mountains of the American Southwest, mountains whose cooler, wetter habitats were severed from their peers by vast seas of desert or grassland.
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