Re: [geo] annual per capita cost of geoengineering

2018-02-04 Thread Ronal W. Larson
Andrew: cc list For biochar, add the concepts of internal rate of return (IRR) and recommended analysis time period (30 years? 100 years?) (as a few of the needed extra parameters, for given types of soil, climate, species, etc). First cost is not the right parameter. Ron > On

[geo] Fwd: [CDR] A Post-Paris Literature Review of Negative Emissions Technology, and Potential for Ireland - DORAS - DCU

2018-02-04 Thread Andrew Lockley
X-post -- Forwarded message -- From: "Greg Rau" Date: 3 Feb 2018 18:12 Subject: [CDR] A Post-Paris Literature Review of Negative Emissions Technology, and Potential for Ireland - DORAS - DCU To: "Carbon Dioxide Removal"

[geo] annual per capita cost of geoengineering

2018-02-04 Thread Andrew Lockley
Hi I'm designing a survey on attitudes to CE, and I'm trying to simplify the costs estimates by making it per person per year. I've put $1 for SRM and $100 for CDR - but it occurs to me that this is really very complicated. Has anyone done any proper research on this? I can't find anything...

Re: [geo] annual per capita cost of geoengineering

2018-02-04 Thread Stephen Salter
Andrew I expect that most of the monitoring will be happening already and with 600 vessels there is already quite a lot of redundancy. We might be paid for sending local surface observations.  Operations will be far enough from shore to discourage piracy. However if you want the double the

Re: [geo] annual per capita cost of geoengineering

2018-02-04 Thread Andrew Lockley
That ignores monitoring and security costs, and also overlooks the cost of providing redundancy On 4 Feb 2018 15:14, "Stephen Salter" wrote: Andrew Allowing for spray vessels being in the wrong place or out of action I would like a fleet of 600 to hold warming at its present

Re: [CDR] Re: [geo] Re: Leaked policy draft of SR15 - what do you think?

2018-02-04 Thread Andrew Lockley
I've just gone through the IPCC draft, and I'd definitely encourage people to fill in responses. IMO there was an awful lot wrong, especially with the SRM assessments (bizarrely-retitled RMM). There was a troubling pattern of *relying on out-of-date science *taking theoretical modelling studies

Re: [geo] annual per capita cost of geoengineering

2018-02-04 Thread Stephen Salter
Andrew Allowing for spray vessels being in the wrong place or out of action I would like a fleet of 600 to hold warming at its present level.  This is based on the assumptions of figure 3 of my Phil. Trans. 2008 paper and could be adjusted for any others. At $4 million US per vessel based