Oliver, Emily etal
The word "decouple" seems too vague. I agree with Emily that if we
use "fossil" we should also mention "land use", but mentioning both doesn't
seem necessary.
My first concern about the term "geoengineering" is that the primary
emphasis is always on SRM - when that is the most controversial part; not good
PR. Second , Ken Caldeira's placement between mitigation and adaptation seems
helpful but I can't recall a definition that ties them all together in his
circular fashion. Third, we don't here enough on ethics - which the term
"rectification" covers. So here is a first try, fixing these three concerns.
I don't expect it to be taken too seriously, but I feel better having gotten
this written down. What is missing is how to decide what to do with both -
neither, one or the other, or both.
Geoengineering consists of two mostly unused types of technologies that
follow mitigation (relatively low cost carbon reduction through energy
efficiency and renewable energy) but precede high cost adaptation (minimizing
future damages) and rectification (financial compensation for the most
harmed)). Close to mitigation are the carbon dioxide removal (CDR)
technologies, that are low risk and can be started now, but are relatively
expensive. Close to adaptation are solar radiation management (SRM)
technologies, which are low cost, but do not address ocean acidification, are
risky, and will require new time-consuming international treaties, before being
able to then react quickly.
Ron
On Feb 16, 2014, at 5:20 AM, O Morton <[email protected]> wrote:
> I'm not sure that you want to include intention in the definition, though it
> is hard to exclude. And I think srm, for example, could, though, unwisely, be
> used without abatement options being pursued; I don't think its reasonable to
> include normative assumptions about how geoengineering should be pursued in
> the definition.
>
> For me, climate geoengineering is distinguished by, and can be defined
> through, its capacity to decouple climate outcomes from cumulative carbon
> dioxide emissions.
>
>
> On Sunday, 16 February 2014 07:46:40 UTC, Emily L-B wrote:
> Hi is it only fossil-fuel use it's aiming to deal with, rather than including
> the effects of land use change, deforestation, burping cows, etc?
> I wonder if geo-engineering aims to
>
> 'reduce climate change (or global warming specifically) alongside efforts to
> reduce ghg emissions.'
>
> This can include srm and cdr.
>
> This captures other ghg emissions sources, so for example, human release
> direct to air, but we are also weakening natural carbon draw down pumps in
> the ocean and may be causing carbon stores to release, from, for example, the
> oceans, forests and methane hydrates.
>
> This also captures the suggestion that geo-eng is expressly intended to be
> used as well as emissione reductions and not instead and not wait till
> emissions reductions is declared inadequate because some people are
> differently optimistic about that and may disagree/ be too late.
>
> Best wishes,
> Emily.
> Sent from my BlackBerry(R) smartphone on O2
> From: Greg Rau <[email protected]>
> Sender: [email protected]
> Date: Sat, 15 Feb 2014 15:03:20 -0800 (PST)
> To: [email protected]<[email protected]>;
> [email protected]<[email protected]>
> ReplyTo: [email protected]
> Subject: Re: [geo] Re: What Is Climate Geoengineering? Word Games in the
> Ongoing Debates Over a Definition
>
> How about:
> "geoengineering schemes seek to mitigate the effect of fossil-fuel combustion
> on the climate in the event that fossil fuel emissions reductions prove
> inadequate to avoid dangerous climate change."
>
> Due to very different risks and benefits, my preference would be to have
> geoengineering be synonymous with SRM, and to treat CDR separately.
>
> Greg
>
> From: Oscar Escobar <[email protected]>
> To: [email protected]
> Sent: Saturday, February 15, 2014 12:24 PM
> Subject: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing
> Debates Over a Definition
>
>
> I think the most accurate definition of climate geoengineering - Climate
> Engineering or (Insert new term here_________________), should include the
> following concept:
>
>
> "geoengineering schemes seek to mitigate the effect of fossil-fuel combustion
> on the climate without abating fossil fuel use."
>
> David Keith
> Ecyclopedia of Global Change - Environmental Change and Human Society -
> volume 1 (2002)
> Also here:
> "Geoengineering Climate - David Keith - Dept. of Chemistry and Chemical
> Biology - Harvard University - Cambridge, Massachusett
> http://keith.seas.harvard.edu/papers/16_Keith_1998_GeoengClimate_s.pdf
>
> I think this is doubly accurate in the case of fossil fuel CCS and enhanced
> oil recovery with carbon storage. I don't think any level of language
> sophistry, or legalese, will separate this fact from reality.
>
> I have to say that, I understand that the many climate geoengineering schemes
> have many different levels of risk, and other issues such as those raised by
> Dr. Smolker, but I don't oppose them in such a blanketed way.
>
> Best regards,
>
> Oscar E.
>
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