‘Dust clouds’ from deep-sea mining threatening marine ecosystems: Study

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‘Dust clouds’ from deep-sea mining threatening marine ecosystems: Study
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Study observed the dispersion of 'dust clouds' emitted by mining activities could disrupt marine life and lead to low visibility.

Deep-sea mining has led to the forming of “dust clouds” at the bottom of the ocean, severely impacting the clarity of the ocean and deep-sea life.

Haalboom, in the study, showed that a small portion of the stirred-up bottom material remains visible in the water at long distances. The instruments in the study measured the amount and the size of suspended particles in the water at the bottom of the Pacific Ocean using a grid equipped with 1100 pounds of steel chains, which were dragged across the bottom.

“After we dragged the chains back and forth over a 500-meter stretch, the vast majority of the stirred-up material settled within just a few hundred meters,” she explained.

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