A final note and then I'll leave you alone. Let's pretend for a second that you're right, and that climate change isn't man-made, and any global shifts in temperature will reverse themselves naturally in time. Even so, it's been proven that those shifts could cause massive destabilization and damage not just to the ecosystem, but many coastal cities and farmlands. This would still have a massive impact on people. So even if we aren't responsible, (and that's a big if) we still need to figure out some way to prevent it or the negative impact it would have. It's as simple as that; the only reason not to take action is laziness or greed.
At any rate, back on topic; while there's not a whole lot new here, the Antarctica bit is a pretty interesting clue. I hope it won't mean a "BiOnIcLeS oN eArTh" scenario, since I feel like their setting is better kept as it's own thing, but from a thematic standpoint I like what it could imply. I don't really have a lot to say that hasn't already been said, but I hope this means more stuff is coming soon!
Whoops, didn't see Eljay's post there, sorry.