Thinning Ozone Layer May Have Driven Greatest Extinction Event (1 of 10) (IMAGE)

American Association for the Advancement of Science (AAAS)

Thinning Ozone Layer May Have Driven Greatest Extinction Event (1 of 10)

Caption

Detail of naturally aborted ovulate cone at end of growth season from control (non-irradiated) healthy pine. This material relates to a paper that appeared in the 07 Feb. 2018, issue of Science Advances, published by AAAS. The paper, by J.P. Benca at University of California, Berkeley in Berkeley, Calif., and colleagues was titled, "UV-B-induced forest sterility: Implications of ozone shield failure in Earth's largest extinction."

Credit

[Credit: Jeff Benca]

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