Geo-engineering using nanoparticles of plastic to carry the chemicals required to create the cloud film and manage solar radiation is called nano-geo.
polymeric nanoparticles (NPs) have great potential for ...the chemicals required for geo-engineering. These NPs have the advantage of controlled release, which would be beneficial in the geo-engineering process.
as an ice nucleating agent, with the possible result of spreading polymer nano- and micro particles into the atmosphere: Ongoing climate geo-engineering.
over the past nearly three decades, there has been an increase in geo-engineering to modify weather for peaceful ends, such as putting a cap on global warming, known as Stratospheric Aerosol Injection (SAI), aka Solar Radiation Management (SRM), as a means to block the sun’s radiation and cool the atmosphere, thus reducing global warming. Often mistaken for condensation trails, these trails are different in that they linger and spread, often for many hours, until the once-blue sky is white and the sun is dimmed.
[researchers] Catic and Mihajlovic explain “there are a wide range of properties that characterize microplastics...that could harm ... cells and tissues.
[they] define a disease created by polymer nanoparticles as “microplastosis” (similar to the term “asbestosis” for the disease caused by asbestos).
Article from Plastics Today: The Microplastics Enigma, July 26, 2021