Animal populations appear to decrease where the deep sea is being mined, and the impact on marine life of the controversial industry may involve a wider “footprint” than previously expected.
According to analysis of seabed ecology undertaken after drilling tests in 2020 in Japan – the country’s first successful extraction of cobalt crusts from deep-sea mountains – there was a decrease in marine life such as fish and shrimp at the site a year later. The density had dropped even further in areas outside the impact zone, by more than half.
