“Don’t bust the crust.” How climate change is destroying the desert’s fragile skin. Via WIREDUK
surface. And yet Finger-Higgins’s study suggests that even without human interference, “warming may partially negate decades of protection from disturbance, with biocrust communities reaching a vital tipping point.” A “tipping point” refers to the moment when ecosystems can only take so much more stress before they fundamentally change.
Finger-Higgens’s “paper offers a little more realism” than these experimental studies, says Bowker. It shows “something that unfolded over an extended period of time in a natural ecosystem.” “You do not want to be breathing in that dust,” she adds. “That can have really bad problems for respiratory illness.” We would also lose the desert’s seed bank. The sponge-like biocrust not only absorbs water, it provides a stable place for plants to grow, increases soil fertility, aids in carbon storage, reduces mudslides, and impacts the hydrological cycle in the region.
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