Redwoods Feel the Climate Squeeze

    Most recently, a group of University of California, Berkeley, scientists performed a study of Northern Californian Redwood trees and determined that in the past one hundred years the amount of summer coastal fog, which tends to keep it cool and humid that time of year, has significantly dropped to potentially dangerous levels. It is unclear if this decrease is part of a natural cylce, or if it is a result of direct human activity. Either way, scientists discovered that this decrease not only endangers our beloved redwoods, but the entire redwood ecosystem. Study leader James A. Johnstone stated that since 1901, the average number of hours of fog along the coast in summer has dropped from 56 percent to nearly 42 percent, which is a loss of about three hours per day. The loss of fog combined witht recent increases in temperature could mean that coastal redwood and other ecosystems along the West Coast could be immensely drought-stressed, with a summer climate of reduced fog frequency and greater evaporative demand.

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