It would be interesting to see a follow up what could happen if the ice is going to melt on Antarctica? Will the virus be released to infect everyone on Earth?
I was just thinking on this fan fiction idea, because what if it is also a "time bomb" of an alien intervention? So the aliens have flooded the Ancient outpost to block the stargate. Then they knew that if Earth is going to reach a critical technological level then the global warming will melt the ice and they can be eliminated as a long-term masterplan / punishment of this alien race. I know it is sounds a really dark twist.
It would also be good to know why the Ancients have build their knowledge deposit. Was it meant for random ATA gene carriers? Or were they waiting for somebody to return from a journey (like Merlin and the knights of the Roundtable)? Or was it meant for the Nox/Asgard/Furling or any other advanced race or advanced human?
Anyway this episode is still one of the best. I wish they could have released as an upgraded, individual DVD movie.