NASA Maps California Drought Effects on Sierra Trees

A new map created with measurements from an airborne instrument developed by NASA’s Jet Propulsion Laboratory, Pasadena, California, reveals the devastating effect of California’s ongoing drought on Sierra Nevada conifer forests.

Dead and dying ponderosa (Pinus ponderosa) and sugar (P. lambertiana) pine on the Hume Lake Ranger District, Sequoia National Forest, California. Credits: USDA Forest Service
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