Ken,

Here's one suggestion:

As a general rule, I would favor SRM over CDR for short-term funding,
for a couple of reasons.  First, the technical attributes of SRM mean
that it would be called upon if there was a need for immediate action
- I think CDR has to be viewed as a medium- to long-term strategy.
Second, and related, as currently conceived, the deployment of CDR
techniques will depend to a great extent on the policy context, in
particular the existence of mandatory and robust carbon markets - as
we are all aware, these are not likely to develop in the near future.

Given this, I would propose splitting funding three ways:

- $3.3m for general modeling efforts, tailored to meet needs specific
to geoengineering research - this support would benefit both SRM and
CDR
- $3.3m for stratospheric aerosols - perhaps targeting key issues like
variable aerosol effectiveness (nanoparticles?) - good preliminary
work exists on delivery systems
- $3.3m for marine cloud brightening, probably focused on spray
nozzles

This rough distribution would spread the wealth in a way that supports
basic research while honing in on key technical challenges that must
be addressed to mitigate the risk of a climate emergency.

Josh Horton


On Apr 18, 11:08 am, Ken Caldeira <kcalde...@carnegie.stanford.edu>
wrote:
> Folks,
>
> There is some discussion in DC about making some small amount of public
> funds available to support SRM and CDR research.
>
> In today's funding climate, it is much more likely that someone might be
> given authority to re-allocate existing budgets than that they would
> actually be given significantly more money for this effort. Thus, the modest
> scale.
>
> If you were doing strategic planning for a US federal agency, and you were
> told that you had a budget of $10 million per year and that you should
> maximize the amount of climate risk reduction obtainable with that $10
> million, what would you allocate it to and why?
>
> Best,
>
> Ken
>
> ___________________________________________________
> Ken Caldeira
>
> Carnegie Institution Dept of Global Ecology
> 260 Panama Street, Stanford, CA 94305 USA
> +1 650 704 7212 
> kcalde...@carnegie.stanford.eduhttp://dge.stanford.edu/labs/caldeiralab @kencaldeira

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