Yeah I believe I said that when I said we need to make large sacrifices, I just didn't specify what those sacrifices were exactly.
I don't think green tech is the end-all be-all. I honestly think we're kind of fucked either way (if anything I was holding back, I've been reading some pretty bleak shit about how impossible this task will be and how bad things can get, but this is Hacker News and most people here don't seem to be receptive to that). Clean tech is just part of reducing the degree of how fucked we are, at least slightly.
And I also think nuclear energy needs to be part of that solution to bring down emissions as well, at least for now. I haven't been against nuclear power for a long time, and was disappointed how people shunned it again after Fukushima.
Green energy is not the end of the solution but it is part of it. It's also quite a big part of it.
I get so upset about people who think green energy is the answer when they don't realize it's not feasible if you want your current lifestyle. People altogether need to stop driving so much, spending so much, and living more modestly. I guarantee you without even switching to green energy we'd see a higher drop in non-renewable usage.