The question is: Does the current
load of aerosols in the atmosphere already exceed that limit, in which case adding extra particles should not greatly affect cloud formation; or do they continue to be a limiting factor as pollution rises, so that added aerosols would continue to influence the clouds?
If by observational data, you mean the amount
of aerosols in the atmosphere, I think that would be a key piece of information that would need to be included in the models as without it the response to volcanic events can not be modeled or predicted.
One idea for fighting global warming is to increase the amount
of aerosols in the atmosphere, scattering incoming solar energy away from the Earth's surface.
One idea for fighting global warming is to increase the amount
of aerosols in the atmosphere, scattering incoming solar energy away from Earth's surface.