Two things concern me here: Firstly, I find it ominous that "game viewing conditions for tourists" is mentioned as a consequence of bush encroachment, once again!
How on earth can this facet possibly enter the minds of
scientists trying to ascertain and manipulate a natural phenomenon on such a massive scale? Inconvenience to tourists is not considered when blowing up dams and waterholes, for example, and rightly so!
Secondly, the reference to roan antelope and tsessebe is pointless in this context, indeed there is not much of a bush encroachment problem in their home ranges, hundreds of kilometres away from the scene of this impending firestorm. On the other hand, the blocks set to be blitzed are PRIME wild dog habitat!

(Ironically, should the area be firebombed into a grassland after years of trying, plains game will increase, lion will increase, and bye-bye wild dog...

)
So if you want to test CO2 hypothyses regarding climate change, fine, but don't throw smoke screens regarding potential benefits around it, if you'll excuse the pun!
I also find the choice of blocks right in the middle of an EXTREMELY busy tourist area questionable, and irresponsible!
There are plenty of overgrown blocks in the Stolznek, Naphe and N'watimhiri areas, well away from tourist traffic. In fact, the only variable that has changed since 2009 is the intended building of the Malelane Luxury Hotel...