Could the shipping industry clean the oceans and stop climate change ?

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Chris Vivian

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Oct 31, 2025, 7:43:19 AM (7 days ago) Oct 31

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All,

This post on LinkedIn by Howard Dryden will be of interest:

https://www.linkedin.com/feed/update/urn:li:activity:7383848529112244224/.

For those not on LinkedIn here is Howard’s post:

“The shipping industry must clean up their act, but maybe they could also be part of the solution.

If we do nothing, then ocean acidification and pollution will result in a total collapse of marine life in the world's oceans within 20 years. This is the life support system for the planet and regulator of the climate; it is an existential threat to humanity that will happen with 100% certainty.

We need to start dumping huge amounts of olivine and calcium carbonate into the world's oceans to try and stop the decline in pH. If we are not successful in this task, then nothing else matters; it's game over.

The second thing the shipping industry can do is to start injecting seawater aerosol into the atmosphere. Ferric, silica, silicates, c15 oils, dms and surfactant cocktail should be added to the seawater. This will biomimic a natural seawater SML aerosol; it will promote cloud formation, reduce atmospheric energy, reduce methane and fertilise the ocean with specific support for diatoms. This is partially ocean fertilisation, but at a 100 to 1000 lower level than has been done before, so this will avoid the localised blooms which have always been the problem.

The aerosol components will promote diatoms and help restore the ocean SML surface micro layer, the redox potential will increase, and the zeta potential will drop. Pollutants including microplastic will start to fall out of the water column, and plankton will be able to maintain position. This will help stop the spread of HNLC dead zones that now cover more than 30% of the world's oceans. If we do not make these changes, the HNLC zones may cover more than 90% in 20 years.... game over again.

There are multiple problems that must be solved in parallel; the shipping industry could be part of the solution.... not the problem.”