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Re:When oil is no longer in demand by AnthonyMouse on Thursday December 01, 2016 @12:15AM (#13077343)
> We're going to need a lot of surplus energy to sequester all of the CO2 we've pumped into the atmosphere over the last 100+ years.

There is no point at which sequestering CO2 by use of electricity is going to make sense. Until the day that we burn zero CO2 whatsoever, you're better off using the electricity as electricity and thereby burning less carbon than burning it and then trying to get it back.

And even at that point, we already have a thing that converts sunlight and CO2 into solid form. Plants.

In theory what you could probably do is cultivate algae in the ocean and then scoop it up in a net, bury it in the ground and repeat. But the scale needed to make a dent is harrowing.

Re:When oil is no longer in demand by ageofwant on Thursday December 01, 2016 @10:23AM (#13079904)
> There is no point at which sequestering CO2 by use of electricity is going to make sense.

Of course there will be. Even burning a small fraction of the Thorium lying in spill heaps today will achieve that. In February 2019, when Tsinghua Uni demos the worlds first commercially viable fusion reactor, everything will change.

We will:

  - convert cubic kilometres of seawater into potable water per day and irrigate the Sahara and the Outback.
  - convert atmospheric C02 to carbohydrate fuels (while there are still need for them)
  - extract cubic killometers of C out of the atmosphere and oceans for construction material.
  - Drop the excess blocks of diamond into the mariana trench, those that we don't use for road base.
  - etc
People really do not appreciate what superabundance of energy would mean for man and our current planet. It will literally be the demarcation point between the age of want, and the ages of plenty.
Re:When oil is no longer in demand by logfromblammo on Thursday December 01, 2016 @11:49AM (#13080824)
> ...In February 2019, when Tsinghua Uni demos the worlds first commercially viable fusion reactor...

Is this your own prediction, or something that the university has announced publicly? I haven't heard anything about it.

Re:When oil is no longer in demand by toomuchtodo on Thursday December 01, 2016 @03:39AM (#13078076)
> There is no point at which sequestering CO2 by use of electricity is going to make sense.

> Until the day that we burn zero CO2 whatsoever

That day will come. And we'll then be at the point where its time to use cheap renewables to pull CO2 back out of the air and store it in a stable state where it can't be burned again.

Re:When oil is no longer in demand by infinite8s on Friday December 02, 2016 @08:52AM (#13088504)
My bet is some sort of synthetic bio-augmented photosynthesis process (if you think about it - that's exactly what plants do - sequester carbon dioxide in carbohydrates). If we are super lucky that process will also generate edible byproducts.
Re:When oil is no longer in demand by codecamper on Thursday December 01, 2016 @04:19AM (#13078213)
oh yeah. probably.... not

problem with computer types is we think that high tech will rule and fix all. and that mind boggling high tech is around the corner always.

Then we are surprised when a Neanderthal wins the Presidency who says he WILL burn more coal. doesn't even matter if it's not economic.

Maybe instead we should become more aggressive. Turn off Trump's twitter. Turn off gmail & facebook in red states.