Different terms are used, Chemtrails is the most conspiracy laden, Solar Geoengineering, GeoEngineering, or SRM Solar Radiation Management are all popular terms to describe the same thing.
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Here’s a Whitehouse report they did just last year explaining their “Solar Radiation Modification” where you can peruse all 40 pages of them whitewashing this.
And here is the CNBC Article summarizing this report.
https://www.cnbc.com/2023/06/30/white-house-releases-report-on-solar-geoengineering.html
Check Mate, really, but there’s more under my proof page.
Here is the best documentary about this issue below.