It's _not_ the end of the world as we know it, and I feel fine
I like a good laugh at the eco-mentalists as much as the next bloke, and the above article is a great dissection of another fact-light regressionist broadside, but let's not put our faith too much in future miracle technologies, eh?
By and large, tech development is controlled by global companies with an interest in protecting the status quo (and probably dire straits too, who knows). The inconvenient truth at the moment is green doesn't pay. No company, unless compelled by stricter laws than we currently have, is going to suddenly cease polluting and start cleaning up. There isn't going to be a Tesla Roadster or a Wrightspeed X1 in every driveway anytime soon.
I agree we can't all suddenly just trade in our laptops for loincloths and pick seven random people to dispose of with spears (as much as we might like to impale the world's more irritating celebs), but we can't just shrug this off and assume that technology will miraculously solve all our environmental problems. We have to keep pushing our elected reps and vote with our wallets to keep green issues on the agenda.
G