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How Accidental Geoengineering May Be Affecting Climate Change. [Re: rise in sea temperature] (threadreaderapp.com)

submitted 1 year ago by [email protected] to c/[email protected]

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Scientists have discovered that the recent spike in global temperatures may be caused by a reduction in sulfur dioxide pollution from shipping vessels. Ships have long emitted sulfur dioxide, which cools the planet by seeding clouds and reflecting sunlight. However, new regulations that limit sulfur in ship fuels took effect in 2020, leading to a loss of this cooling effect equivalent to a large volcanic eruption each year. Models show this reduction in sulfur dioxide pollution can explain the extra warming seen in the North Atlantic. While pollution is bad, the new regulations provide a natural experiment that gives insight into how intentional geoengineering could potentially combat climate change in the future.

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[–] [email protected] 6 points 1 year ago (2 children)

I wonder if there is a solution that involves a less dangerous gas instead of sea water. Spraying large volumes of water into the stratosphere is not really possible yet, so if it just rose as a gas it would be more doable.

[–] [email protected] 2 points 1 year ago

For a second I thought you were calling sea water a dangerous gas.

[–] [email protected] 2 points 1 year ago

A while back there was a round of news suggesting calcium carbonate particulate stratospheric injection would be a good substitute for sulfur dioxide.