Thanks for sharing the link! The article focuses on Marine Cloud Brightening (MCB), an unscalable method of solar radiation management. MCB would require thousands of autonomous boats (ideally running without fossil fuels) to locate suitable low-altitude ocean clouds and spray them with finely misted saltwater to increase their reflectivity. At best, this method might achieve localized cooling over ocean areas, but its net impact on global temperatures remains uncertain—scientists are still debating whether it would result in overall cooling or even exacerbate warming in some regions.
The specific experiment mentioned in the article was halted due to a lack of community engagement. The organizers failed to inform or invite the local mayor to the deployment event, leading to public backlash when residents learned about it from the New York Times. Much of the misunderstanding came from a perception that the experiment involved risky technology, though in reality, it was as simple as using a patio mister mounted on a retired warship.
What I was referencing, however, is Stratospheric Aerosol Injection (SAI), which differs significantly from MCB in both the type of aerosol used (typically sulfur dioxide, SO₂) and the location of the injection (the stratosphere, rather than the lower atmosphere). If you're interested in learning more about SAI, here's an excellent primer: https://unchartedterritories.tomaspueyo.com/p/so2-injection
