The authors examine various potential causes of aerosol increases and identify a number of small volcanoes over the last decade as the most plausible source. (yaleclimateconnections.org)
I've already expressed my disappointment with natural aerosol increases which don't appear to play in the models. (ourchangingclimate.wordpress.com)
Expectations of decreases in large source regions such as China [195] may be counteracted by aerosol increases other places as global population continues to increase. (journals.plos.org)