The world manufactures 30,000 tonnes a year of organic tin as a plasticiser used in PVC, as a biocide in cooling towers, as a catalyst in organic chemistry, it is still even used as antifouling paint on the hull of container ships. If 1000 tonnes were to dissolve into the oceans all at the one time, it will kill all marine life...everywhere. Plastic is building up in ocean sediment, micro-plastics and nanoplastics are adsorbed by marine life, it all ends up back in the food chain and in people. What Goes Around Comes Around, all marine life and people, now contain nano plastic and priority chemicals including organic tin. We have basically destroyed our envirtonment, the chemical bomb has exploded, but nobody is paying attetion, the focus has been on CO2 emmissions.
Toxic priority chemicals adsorbed onto hydrophobic nano particles such as plastic, from washing your fleece and zeolites used in washing up detergents, concentrate the priority chemicals and inject them into bacteria, algae and plankton. We depend upon the oceanic food chain for our very survival, it is being destroyed and few people actually know it is happening. We have around 25 years before a cascade failure, and if we lose the marine ecosystem, the terrestrial system will follow.
80% of the worlds oxygen is produced in the oceans by microscopic plants, and 30% of the carbon dioxide is fixed by organisms smaller than 1mm. We know that atmospheric oxygen levels are dropping and carbon dioxide concentrations are increasing.
Most life on earth lives in the oceans, and is too small to seen by eye, according to NASA, the microscopic life forms are dying off at a rate of 1% every year. This means that 0.8% off all life on the planet is dying every year. Research from Universities such as Dalhousie in Nova Scotia, published in Nature, report that more than 40% of all microscopic life has died since the 1950s, the start of the chemical revolution as opposed to the industrial revolution. As a consequence, the oceans are losing their ability to sequester carbon dioxide which means that carbon dioxide concentrations are increasing, making the oceans more acidic.
The pH (acidity) has dropped from 8.26 to 8.06 over the last 50 years. Over the next 25 to 40 years it will drop to pH7.9, at which point there will be a cascade failure of the marine ecosystem, and we lose all the teleost fish, whales, seals, birds and food supply for 2 billion people.
Increasing temperatures and carbon dioxide, as well as all the nutrients from pollution should increase primary productivity, yet we are see a drop of 1% every year. This situation is not sustainable, but why is it happening? we know that it is certainly not climate change.
Priority chemical pollution in combination with hydrophobic micro and nano particles is the explanation. Reducing CO2 emissions is not going to have any impact, we need to also reduce and eliminate priority chemicals such as PCBs, PBDE, mercury and organic tins.