Personally, I don't think civilisation, as we define it now, will be around much longer than two or three decades from now. I'll be very happy to be proven wrong, of course, but I have a lot of doubts that humanity will be able to collectively get it's
together before climate change becomes irreversibly catastrophic (i.e. in the next few years). I think there'll be global conflicts over fresh water and arable land sometime in the next two to four decades. Mass immigration will increase dramatically as heavily populated low lying areas gradually become flooded and farmland worldwide dies, people will lose their minds over this and we'll see a huge number of authoritarian governments (dictatorships) spring up around the world (we're already seeing this begin right now). If we make it through the next two decades without a world war, my cold dead heart will warm a little at the fact that I underestimated humanities capacity for peace.
Once a few massive catastrophes hit multiple countries at once, we'll lose regular access to the internet, potentially even power (power grid protection is not great right now). Peaceful technological progress will grind to a halt as governments turn their focus towards military applications. This is because at some point the hyper rich will realise that, yes indeedy, climate change is going to effect them as well, even those in the oil and coal businesses (Australia is in the process of approving the largest coal mine ever built here as we speak) and they start to lobby for everyone's tax dollars to be used to protect them.
In a hundred years from now, whatever shreds of society are left will look back on us all being so casual about climate change as a world full of people worse than Hitler.
Man, I really hope this
doesn't happen...