Geoengineering to fight Global Warming

Oxymoron

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Spilling over from

https://www.metabunk.org/threads/ho...e-denier-and-then-what.1255/page-7#post-58198

If for arguments sake, we accept that CO2 content of the atmosphere needs to come down, or at least not climb appreciably further, that will defacto amount to Geoengineering. In fact, it must be accepted that as a player in the field we have already impacted the atmosphere/climate simply by our presence and activities, that in essence makes us guilty of geoengineering anyway, even if it was unintentional.

So how do we actually go about stabilising the CO2 or if we choose, even reversing it?

Bearing in mind that 'we', the developed world are the main culprits in this, what sacrifices and changes are needed. What exactly are the economic ramifications?
 
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Belfrey

Senior Member.
You're using the term "geoengineering" rather loosely here. As it is usually used, it doesn't just refer to anything that humans do which might influence the climate. I often use the definition found on Wikipedia: "the deliberate and large-scale intervention in the Earth’s climatic system with the aim of reducing global warming." The main strategies proposed have involved either solar radiation management, or removal of carbon dioxide from the atmosphere.

Thus, "geoengineering" is discussed as something that is distinct from emissions reduction strategies. Most scientists who study geo-engineering say that it should be considered as a last resort, if we are unable to sufficiently reduce anthropogenic carbon emissions.
 

Oxymoron

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You're using the term "geoengineering" rather loosely here. As it is usually used, it doesn't just refer to anything that humans do which might influence the climate. I often use the definition found on Wikipedia: "the deliberate and large-scale intervention in the Earth’s climatic system with the aim of reducing global warming." The main strategies proposed have involved either solar radiation management, or removal of carbon dioxide from the atmosphere.

Thus, "geoengineering" is discussed as something that is distinct from emissions reduction strategies. Most scientists who study geo-engineering say that it should be considered as a last resort, if we are unable to sufficiently reduce anthropogenic carbon emissions.
I think it would be helpful if you set out the main ideas along with their pro's and con's along with the feasibility assessment.

That is if you want to convert skeptics who just see a ponzi scheme based on nothing.
 

mynym

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Thus, "geoengineering" is discussed as something that is distinct from emissions reduction strategies. Most scientists who study geo-engineering say that it should be considered as a last resort, if we are unable to sufficiently reduce anthropogenic carbon emissions.

Pretty sure that Boston in the other thread is already saying that people should consider the last resort, whatever it is. Point of no return, etc. I could be wrong, maybe he's just saying that we should keep on raising awareness of our imminent demise indefinitely... without ever proposing any possible solutions. The solution? Awareness of our imminent demise. Well, that's just great.

In any event, it seems to me that it's likely to be a truism that we'll be unable to "sufficiently reduce anthropogenic carbon emissions" eventually if current trajectories continue. Because people like to have sex and like to have other nice things too, etc. And their economies are basically expressions of fossil fuels, even with alternatives in the mix there are still petroleum products in a car itself and thus the need for big oil tankers and so forth.

I proposed some possible scenarios and solutions as far as reducing emissions anyway but people in "bunker" mode didn't seem to want to talk about anything but scientific proof of the problem with emissions itself. Shrug.


I'm not sure that going into bunker mode vs. the "deniers" is actually all that scientific. But if it is and that's just the science or what not, it doesn't seem that effective as far as convincing people goes. After all, apparently I'm not allowed to agree or change my mind even if I want to agree with something. And that's not very convincing, is it?
 

Oxymoron

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http://www.newscientist.com/article/mg20126921.500-one-last-chance-to-save-mankind.html?full=true
 

Oxymoron

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Don't panic... "Keep calm and carry on".
Who says CTers are fear mongers... lol:)

http://www.explainthatstuff.com/geoengineering.html


Now the way I see it is, it wouldn't be a great leap to legislate that 'high pollutant shipping', should be required to install this technology and the resultant CO2 etc is either reclaimed and buried or goes straight into the sea. (not sure of the impact of the latter).


I think this below, was the one that was up and running but facing some financial difficulty in 2011. Apparently the emissions were so clean you could breathe them in directly.

 

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