Marine life and climate change

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From a biological perspective, we do not have climate change.

Sure, carbon dioxide is a greenhouse gas, but water vapour represents 70% of all GHGs. The argument is that carbon dioxide is increasing because of the burning of fossil fuels, which is true. But the main reason is that we have destroyed more than 50% of all terrestrial plants and marine phytoplankton, sea grass, and mangroves and have eliminated the mechanisms for removing carbon dioxide from the atmosphere.

Indeed, we would not have climate change if we had protected and regenerated nature. Take just the fishing industry as an example: destructive fishing has destroyed the ability of nature to remove 10 gigatons of carbon, which is almost the same as the burning of all fossil fuels. I included the reference.

and I quote, "the biogeochemical impact of fisheries has been comparable to that of anthropogenic climate change." This is just one example; if you then include the destruction of sea grass, mangroves, and lipophilic pollution, you see a completely different picture.

While the problem of climate change is linked to carbon, this is simply not the root cause, which is the destruction of nature. We have produced a paper with our own observations that tries to explain what’s happening.

We also know that if we achieve net zero for carbon by 2030, then atmospheric carbon dioxide will still pass 500 ppm, ocean acidification will still drop to pH 7.95, we will lose all the coral reefs and carbonate-based plankton, and a massive regime shift will wipe out all the whales, seals, birds, fish, and food supply for 3 billion people. We also lose the SML surface microlayer.

It is therefore impossible to stop catastrophic climate change through carbon mitigation. Indeed, it is now impossible to stop climate change; however, this is the least of our problems. We could survive climate change, but we will not survive the almost total loss of nature on land and marine life in the oceans over the next 20 years.

Historically, the earth had much higher carbon dioxide concentrations; for example, during the Cretaceous period 70 million years ago, carbon dioxide was 1200 mg/l, the oceanic pH was 7.6, and marine life flourished, even with Arctic temperatures 5 degrees warmer. The difference now is that, due to calcium deposition, the marine calcium concentration has dropped fivefold to 180 mg/l, and magnesium concentrations have increased. Even without anthropogenic input, the oceans would crash in perhaps one or two thousand years; however, anthropogenic input from pollution has greatly accelerated the process. We estimate, that we will reach the end point of pH 7.95 by 2045 +/- about 5 years.