Atmospheric feedbacks and the Victorian bushfires

Aerosols in smoke from the Victorian bush fires news story here

If we are going to see more of these extreme fire events , and can therefore expect to see greater quantities of emissions( smoke particles, sulphur, water vapour etc) pushed into higher levels of the atmosphere where they will reside and interact for some time, to what extent are the GCM's able to incorporate this into their modelling?

What will be the net effect? Cooling or warming?

Is the effect equivalent to or different from that of a volcanic eruption?