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.

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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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