Re: VAAC
Ah, optimism, I like that.
Note that it has been reported that when this one last erupted in December 1821, it kept on going until January 1823. What has not been mentioned is that in the previous century it erupted for five years*, poisoning the atmosphere and surrounding sea to the extent that they seriously considered evacuating the country.
IANAV**, but that would seem to suggest that there's quite likely to be a cloud of crap like this circulating on and off for some time to come. Just out of interest, what is the economic impact of large swathes of Western and Central Europe possibly being a no-fly zone (or at least a no take off or land zone) at unpredictable intervals of unpredictable duration for the next 12 months plus?
*Incidently, look up the megatonnage of CO2 that five year outburst chucked into the jolly old atmos. Makes yer AGW treaty targets look like pissing into the wind.
**I am not a Vulcanologist.