Note: Since deep-sea mining is mentioned in this article I thought of adding a few of links in an effort to sum up how vast and serious the problem is.

• These polymetallic nodules that mining companies want to extract from the deep sea, well it looks like they produce oxygen through electrolysis [source]. Meaning, without this source of oxygen these deep-sea ecosystems are going to literally suffocate.

• 66% of the entire planet is deep ocean (≥200 m). Data show that humans have visually observed less than 0.001%, a total area approximately a tenth of the size of Belgium [source]. So companies want to move in and exploit the seabed for profit, one them is the notorious TCM / The Metals Company, while marine scientists say that we need to know what the impact is first, before making any move.