[ExI] Can Some Very Tiny Particles Cool the Planet? One Tech Company Says Yes.

[Ben Zaiboc]

On 17/05/2026 03:23, 
John Clark wrote:
> Can Some Very Tiny Particles Cool the Planet? One Tech Company Says Yes.
>
> Stardust Solutions says its tiny spheres can reflect the sun’s rays without harming people or the environment. Critics say private companies have no business altering Earth’s atmosphere.


I haven't read the article (NYT site doesn't work for me), but the usual problem with this kind of thing is simply the scale.

How many trillions, or quadrillions of these particles would need to be deployed to have a measurable effect? The political and legal problems are bad enough, but these are always overshadowed by the practical ones. How many factories would have to churn out these tiny spheres, for how many years or decades to achieve the required numbers? Not to mention how much it would cost.

One Tech Company might be able to produce a single grain of sand, but it will never create an entire beach.

(The 'critics' comment is meaningless. Private companies have been altering earth's atmosphere for decades).

-- 
Ben