Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

neering@googlegroups.com *On > Behalf Of *Douglas MacMartin > *Sent:* Tuesday, February 9, 2021 7:51 AM > *To:* adrian.hin...@anu.edu.au; geoengineering < > geoengineering@googlegroups.com> > *Subject:* RE: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO > REFREEZE THE ARCTIC &

RE: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

ing@googlegroups.com> *Subject:* RE: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC Adrian – your list of ostensibly viable should include SAI too, as was pointed out earlier on this same thread. In principle one could inject SO2 or other in the spring at high la

RE: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

Adrian Hindes Sent: Monday, February 8, 2021 6:37 PM To: geoengineering Subject: Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC Ah of course, the straightforward thermodynamics of it aren't favourable to direct cooling through refrigeration. I suppose the

Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

As per my recent paper, it is promising to pump seawater through the ice (approx 0C), so it freezes in the Arctic winter air (approx -40C). This isn't a new idea, and I think my paper might contain references to earlier work (perhaps Flynn?). https://www.sciencedirect.com/science/article/pii/S1674

Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

Ah of course, the straightforward thermodynamics of it aren't favourable to direct cooling through refrigeration. I suppose the only way to make it work would be to transfer the heat to outer space or deep underground. I don't know too much about how heat exchangers or thermal transport works

Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

I'm unclear on the proposed mechanism, but any artificial refrigeration simply moves heat around. There is obviously an energy penalty for doing this - and for generating the electricity, in the first place. In short, all the additional thermal energy from the nuclear power plant will ultimately en

Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

@Oliver although that's quite a few nuclear power plants, that's actually not so far out of the realm of possibility. On Friday, 5 February 2021 at 11:48:12 am UTC+11 Oliver Wingenter wrote: > It would take 20 nuclear power plants running conventional refrigeration > to cool the Arctic Ocean.a

Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

Hi all, just pointing out that by chance Walker and the rest of our group have a preprint just published in ESSOAr - and submitted to GRL - about this exact topic, taking a new look at the potential of Arctic SAI. High-latitude stratospheric aerosol geoengineering can be more effective if injec

Re: [geo] THE COOLING CONUNDRUM REVERSING CLIMATE CHANGE TO REFREEZE THE ARCTIC

It would take 20 nuclear power plants running conventional refrigeration to cool the Arctic Ocean.and refreeze it. Virus-free. www.avast.com