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Comment Re:Sequestering (Score 1) 186

>I've wondered whether we should start putting carbon back into the ground, and whether this is feasible
Calcium Carbonate is an alternative to plastic and plants. It has worked in the past. Disclaimer, I am a classically trained rock licking geologist. The CaCO3 will be in the form of the lifeless bodies of dead things accumulating in sea bottom ooze, not that different from 'the ground' although once it becomes carbonate there is no going back. Some places will be too deep, some marginally to acid but there are large parts of the world that could support accumulation. Someone with a calculator can work out the volume of 30 gigatonnes of CO2 converted to CaCO3.

Comment Re:Now is the time to prepare (Score 0) 83

Learn to play a musical instrument well enough to earn supper.
learn to repair sails
dead tree books on edible wild plants
old Encyclopedia Britannicas - anyone know how many it will take to stop a 50 cal round? I once determined empirically that a 150 grain bronze point 30-06 will penetrate 2.5 color (tube type) television sets.

Comment Re: Probes AND Humans (Score 1) 114

Suppose Isabella told Christopher Columbus to piss off and instead just sent robots. Those robots would *NEVER* have found San Francisco, one of the most beautiful cities on the planet. Or jazz, or blues, or grunge, or KC bar-b-que or Tex-mex. Humans must go to find the things that will be there, not the things that are there now.
Get it?

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