The tiny floating organisms that supply our world with as much as a fifth of its oxygen will be in dire straights as our oceans acidify, new research suggests.
But the new research identifies a factor that was. It turns out that as the water's pH drops, these vital silica building blocks will start dissolving more slowly, meaning more of it will sink further into the ocean's depths before it becomes light enough to stay afloat.
This leads to more silica on the ocean floor, far out of reach of the diatoms floating in the light they use to turn COAn opaline silica frustule under 1,500x magnification. Taucher and fellow researchers discovered this using giant oceanic"test tubes" , where they added different concentrations of COThey then evaluated samples from different depths – analyzing the dead-diatom-filled sediment they captured. This, along with modeling, backed by previous studies on
, revealed a staggering decrease of floating silica, suggesting diatoms could decline by up to a quarter approximately by 2200.Such a huge loss of these phytoplankton will have drastic ramifications on the other life on our planet, given these organisms are one of the ocean's main
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