Re: [geo] Research Priorities for SRM

2013-08-17 Thread Ronal W. Larson
Andrew, cc list: 1. Are there any other documents coming from your Harvard summer program? 2. In the ppt slide about 40% down, labeled Impacts III, can you describe the 5 columns and the meaning of the gray shading on1/3 to 1/2 of the entries? 3. Can you give a summary of your

Re: [geo] DAC vs CRD?

2013-08-23 Thread Ronal W. Larson
On Aug 23, 2013, at 12:05 PM, Rau, Greg r...@llnl.gov wrote: Greg etal: This is to comment on a line in the EE report you posed, which said: The transportation sector accounts for 28 percent of greenhouse gas emissions in the United States, according to U.S. EPA, so there is still a

Re: [geo] DAC vs CRD?

2013-08-23 Thread Ronal W. Larson
, 2013 at 11:38 AM, Ronal W. Larson rongretlar...@comcast.net wrote: On Aug 23, 2013, at 12:05 PM, Rau, Greg r...@llnl.gov wrote: Greg etal: This is to comment on a line in the EE report you posed, which said: The transportation sector accounts for 28 percent of greenhouse gas

Re: [geo] Still More CDR: Nutty idea?

2013-08-24 Thread Ronal W. Larson
Greg and List: 1. Thanks for the alert on this (free) study, that can be found at http://www.earth-syst-dynam.net/4/237/2013/esd-4-237-2013.pdf 2. Those (like myself) interested in your CROPS, biochar, etc, will find plenty here on CDR, even though that term is here

Re: [geo] Al Gore on geoengineering

2013-08-25 Thread Ronal W. Larson
Simon and Geoengineering list: Thanks for providing this link to a recent paper by Clare Heyward, emphasizing proper terminology. The middle part of the abstract reads: This article argues that “geoengineering” should not be regarded as a third category of response to climate change,

Re: [geo] Al Gore on geoengineering

2013-08-25 Thread Ronal W. Larson
...@carnegiescience.edu On Sun, Aug 25, 2013 at 11:40 AM, Ronal W. Larson rongretlar...@comcast.net wrote: Simon and Geoengineering list: Thanks for providing this link to a recent paper by Clare Heyward, emphasizing proper terminology. The middle part of the abstract reads

Re: [geo] DAC vs CRD?

2013-08-27 Thread Ronal W . Larson
Assistant: Sharyn Nantuna, snant...@carnegiescience.edu On Fri, Aug 23, 2013 at 11:38 AM, Ronal W. Larson rongretlar...@comcast.net wrote: On Aug 23, 2013, at 12:05 PM, Rau, Greg r...@llnl.gov wrote: Greg etal: This is to comment on a line in the EE report you posed

Re: [geo] Linking solar geoengineering and emissions reduction

2013-09-13 Thread Ronal W. Larson
List and Ken This is to generally support Ken's no new proposal below. I have received 17 others in this thread, but I don't believe any have the following three amendments that I suggest for further discussion. 1. That ceasing also apply to the opening of any new fossil fuel production

Re: [geo] Are ideas to cool the planet realistic?

2013-09-21 Thread Ronal W . Larson
Dr. Seitz, list, adding Dr. Goreau On Sep 21, 2013, at 10:45 AM, Russell Seitz russellse...@gmail.com wrote: 1. I didn't find this BBC article below submitted by Drs. Goreau and Seitz to be helpful. For one, the article doesn't answer the hugely important BBC's headline question

Re: [geo] Scientific advice improved outcome of UN climate talks

2013-09-22 Thread Ronal W. Larson
Greg, Andrew and list: 1. Thanks to Andrew for the alert on IEAGHG. I think this group is limited to deep underground sequestration - cannot likely even be interested in DAC = Direct Air Capture, whose collection costs seem to forgo a CDR opportunity (per Prof. Socolow analysis). This

Re: [geo] Scientific advice improved outcome of UN climate talks

2013-09-23 Thread Ronal W. Larson
Dr. Schulling: Thanks for the addition. I enjoyed reading all six approaches, not only section 2.2. Section 2.3 on stopping fires using rock dust slurries was of special interest because of your section 3 estimate of substantial saving benefits (not costs). I am not qualified to know

Re: [geo] proposed definition of geoengineering, suitable for use in an international legal context

2013-09-24 Thread Ronal W. Larson
Ken cc List: 1. I like your starting point. Thanks for providing it. Re de minimis, I prefer it over material. 2. My concern is that you have two (separate, distinctly different) criteria in a relatively long sentence, where some readers may think the two are coupled or

Re: [geo] proposed definition of geoengineering, suitable for use in an international legal context (version 25 Sep 2013)

2013-09-25 Thread Ronal W. Larson
Ken, Jim, etal The following more responding to Jim than Ken. Warning - the comments are mostly from a biochar perspective, and may not even be representing that group. But I am trying also to represent many of the CDR approaches as well. The critical geo issue I don't see

Re: [geo] GGR is the new CDR

2013-09-26 Thread Ronal W. Larson
Andrew: 1. I like the GRR suggestion - and will start using it. (unless I soon hear a good reason not to) 2. Googling says this Negative Emmissions (Emissions?) Conference has been going on for the last two days at Oxford. Can you or anyone report on any possible location for

Re: [geo] proposed definition of geoengineering, suitable for use in an international legal context (version 25 Sep 2013)

2013-09-26 Thread Ronal W. Larson
Ken etal: Since we are still offering modifications today, let me try an alternative approach, defining exclusions rather than inclusions. This removes a comparative and the word not. This still keeps I think your intent and much of your language (although I returned to removal rather

Re: [geo] An Analysis of the Connection Between Climate Change, Technological Solutions and Potential Disaster Management: The Contribution of Geoengineering Research - Springer

2013-09-27 Thread Ronal W. Larson
Ken etal 1. I concur on that sentence. The literature on biochar that I read certainly includes the public (and only rarely any elite). 2. We have mentioned Dr. Sikka's name before on this list. The new article being pricey, I found a similar free article of the same time frame at:

Re: [geo] Geoengineering in IPCC WGI AR5 Summary for Policymakers

2013-09-27 Thread Ronal W. Larson
Joshua and list 1. Thanks for the alert. Besides your excerpt below, there is another (well hidden, but is in Section E8, with Irreversibility in the Section Title) place in the Summary where CDR appears (albeit indirectly). I found it as I was reading today's RealClimate summary of the

Re: [geo] ETC: Concern as IPCC Bangs the Drum for Geoengineering

2013-09-27 Thread Ronal W. Larson
Jim, cc list I really don't understand the ETC position, so please excuse a few questions. I restrict myself, and ask you to also, to CDR, not SRM. I want to tackle the easiest issues first. The reason for asking the following is my having just finished Chapter 1 of a new book Climate

Re: [geo] Why has geoengineering been legitimised by the IPCC?

2013-09-28 Thread Ronal W. Larson
Greg list, etal 1. This is to follow up on the note I wrote a few hours ago saying (about a US government supplied statistic for SCC, the Social Cost of Capital) In another note soon, I will justify this $41 number. I am not an expert on this topic and hope others can give more

Re: [geo] Why has geoengineering been legitimised by the IPCC?

2013-09-28 Thread Ronal W. Larson
...@carnegiescience.edu http://dge.stanford.edu/labs/caldeiralab https://twitter.com/KenCaldeira On Sat, Sep 28, 2013 at 9:56 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Greg etal: I mostly agree. But not with your first paragraph below. Included in most definitions of CDR

[geo] Comparing bombs, tonnes excess atmospheric C, and land area in a CDR analysis

2013-10-01 Thread Ronal W. Larson
List: I wondered if I could relate CDR (in my case easiest to use biochar) in some way to Hiroshima bombs. Is the following, using an imbalance methodology, credible? This assumes the reader has been following the list dialog on Hiroshima bombs. I am not recommending that this be a

Re: [geo] Biochar and Microbial Signaling: Production Conditions Determine Effects on Microbial Communication - EST

2013-10-02 Thread Ronal W. Larson
Andrew and list: Thanks for the alert. In trying to learn more (as Dr. Masiello's article is behind a pay wall), I found this Rice University cite which I found informative: http://www.nanowerk.com/news2/biotech/newsid=32537.php The subject of in-soil signaling needs a lot more

Re: [geo] IPCC on SRM and CDR

2013-10-02 Thread Ronal W. Larson
Andrew 1.Again thanks. You do a great job of finding good Geo material to read. These two below of course are very current and relevant to this list. My life would be a lot easier if you didn't provide so many. 2.I also recommend Chapter 12:

Re: [geo] Global funding for geoengineering research

2013-10-04 Thread Ronal W. Larson
Alexandercc list: Can you clarify whether you are inquiring about A) geoengineering (both SRM and CD) or B) solar geoengineering. Also whether you are also interested in the amount of private sector research funding that is going into A) and/or B). And is total funding or RD

Re: [geo] Time for a Government Advisory Committee on Geoengineering Research

2013-10-06 Thread Ronal W. Larson
Jesse and Andrew: 1. Thanks for the lead on the Winickoff-Brown article. They referenced an article (no fee) by Long and Scott that I thought was also very good at http://www.issues.org/29.3/long.html . Not enough, though, in either paper on separating Geo into SRM and CDR. 2. Reading

Re: [geo] Carbon farming's added benefits

2013-10-09 Thread Ronal W. Larson
Andrew and list: 1. Thanks again. The article itself is available (no-fee, perhaps for short time only?) at http://www.aibs.org/bioscience-press-releases/resources/Lin.pdf Not possible to copy the abstract - a stripe across each page. Here is the journal's summary, a little different

Re: [geo] 2013 North American Biochar Symposium | Harvesting Hope: The Science and Synergies of Biochar

2013-10-10 Thread Ronal W. Larson
List and cc Andrew: I will be there for all days and will be trying to report live to two other lists on latest news. Drop me a line if you would like to hear similarly. About 220 expected, but numerous late regrets from a dozen or so Federal employees who were told to cancel.

Re: [geo] Oxford Geoengineering Programme // Geoengineering Library

2013-10-12 Thread Ronal W. Larson
Andrew and list: I agree the Oxford group is doing good work. But it is incorrect to claim virtually every as regards biochar, where they show 26 papers (not all peer-reviewed). By my reckoning they have missed 400+ biochar research papers since their most recent entry from February last

Re: [geo] Can science fix climate change? | Mike Hulme

2013-10-13 Thread Ronal W. Larson
Andrew and List: Obviously Professor Hume's new book will not provide a happy addition for those on this list interested in SRM. But not a new view. I can't contribute, for lack of proper study reasons, but I hope others will. But I also hope Professor Hume and others would comment on

[geo] Report from Biochar conference - U Mass.

2013-10-15 Thread Ronal W. Larson
1. This coming at end of 2nd day. One more day and then a field demonstration day. 2. The conference agenda should anyone want detail (or possible answer to a specific question) is at http://scholarworks.umass.edu/biochar/2013/ 3.Today's schedule is at:

Re: [geo] Earthworms: Nature's unlikely CDRers

2013-10-18 Thread Ronal W. Larson
Greg and list: This is my first day back from the 4-day biochar conference (went well). I have read the abstract and the supplementary material, but not yet the full article (copy would be much appreciated). I am pretty sure the authors are encouraging vermiculture for CDR reasons - but

[geo] Fwd: [biochar] Post-conf re-cap: USBI 2013 North American Biochar Symposium, Amherst, MA Oct 13-16

2013-10-19 Thread Ronal W. Larson
List: This message from Albert Bates (author of a biochar best-seller, appeared before the Supreme Court four times) captures a lot of the flavor. Full videos of all presentations probably at least a few weeks away. Personally, I missed most of the material in Albert's blog. Ron

Re: [geo] Climate Engineering Conference 2014

2013-10-23 Thread Ronal W. Larson
Ben, Andrew and list: I see so little on CDR/GRR that I couldn't in good conscience recommend friends from the biochar community to submit anything. I include the membership lists in the various organizing and advisory panels, where you have many (maybe all) well known names - a few on

Re: [geo] Climate Engineering Conference 2014

2013-10-23 Thread Ronal W. Larson
of the attendees. Best, Ben On Oct 23, 2013, at 10:27 AM, Ronal W. Larson rongretlar...@comcast.net wrote: Ben, Andrew and list: I see so little on CDR/GRR that I couldn't in good conscience recommend friends from the biochar community to submit anything. I include the membership

Re: [geo] TERRA FUTURA 2013: INTERVIEW WITH VANDANA SHIVA ABOUT GEOENGINEERING | NoGeoingegneria

2013-10-27 Thread Ronal W. Larson
List cc Andrew This interview is of course not good news; Dr. Shiva has a pretty strong following in environmental circles. I add a few comments here for three reasons First because she has said all of the same things about biochar (not mentioned in the transcript below)

Re: [geo] TERRA FUTURA 2013: INTERVIEW WITH VANDANA SHIVA ABOUT GEOENGINEERING | NoGeoingegneria

2013-10-27 Thread Ronal W. Larson
but a few lines of what I wrote earlier, as I inadvertently sent two versions - neither complete (still learning my new Mac). Below I finish my thoughts about a map mentioned in the interview. On Oct 27, 2013, at 1:48 PM, Ronal W. Larson rongretlar...@comcast.net wrote: List cc Andrew

Re: [geo] TERRA FUTURA 2013: INTERVIEW WITH VANDANA SHIVA ABOUT GEOENGINEERING | NoGeoingegneria

2013-10-28 Thread Ronal W. Larson
List cc Oliver 1. There was a message from David Hawkins after this one from Oliver - that seem to indicate David is better understanding Oliver’s position on CDR. Good. But I am not following that theme in this message. 2. This message is picking up on Oliver’s final paragraph below

[geo] Re: TERRA FUTURA 2013: INTERVIEW WITH VANDANA SHIVA ABOUT GEOENGINEERING | NoGeoingegneria

2013-10-28 Thread Ronal W . Larson
Brian and list: See inserts below. Re the first sentence below on Dr. Shiva, see a message I just sent. I go further than you about “rhetorically overstated”. I agree with others that she is dangerous - because she is anti-science, much worse than no science. more below. On Oct 28,

Re: [geo] TERRA FUTURA 2013: INTERVIEW WITH VANDANA SHIVA ABOUT GEOENGINEERING | NoGeoingegneria

2013-10-29 Thread Ronal W. Larson
List and Brian: I just noted a mis-statement. See below. On Oct 29, 2013, at 1:28 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Brian (cc list) This to respond to your three inserts in my yesterday’s response to you BC1:But that's not very good. Warming-induced feedback

Re: [geo] TERRA FUTURA 2013: INTERVIEW WITH VANDANA SHIVA ABOUT GEOENGINEERING | NoGeoingegneria

2013-10-30 Thread Ronal W. Larson
a whole lot of CO2 out of the atmosphere. Some simple calculations are attached. Tom. = On 10/29/2013 2:18 PM, Ronal W. Larson wrote: List and Brian: I just noted a mis-statement. See below. On Oct 29, 2013, at 1:28 PM, Ronal W. Larson

Re: [geo] Adapting to rather than avoiding or fixing Hell and High Water

2013-11-17 Thread Ronal W. Larson
rather than mitigation. Chuck Greene On Nov 17, 2013, at 7:43 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Greg cc list: 1. To answer your final question - yes, I wish the article had somehow found a way to mention SRM and CDR. But in reading the background material

[geo] Re: biochar as CDR and related nomenclature issues: CDRS = CDR + S (carbon dioxide removal + storage)

2013-11-18 Thread Ronal W. Larson
Ken and list: The only way I can see to respond is paragraph by paragraph. Apologies in advance, but there are some important topics below for biochar. On Nov 18, 2013, at 3:59 PM, Ken Caldeira kcalde...@carnegiescience.edu wrote: Folks, The question about whether biochar is a CDR

Re: [geo] Re: biochar as CDR and related nomenclature issues: CDRS = CDR + S (carbon dioxide removal + storage)

2013-11-19 Thread Ronal W. Larson
Keith cc list 1. Since this is a thread with a biochar theme, I thought we should compare a hypothetical biochar scenario with your solar power satellite (SPS) scenario. 2. Because char is lighter than oil (I assume relative density of 1/3), I got 1200 km3 of char, assuming 400 Gt of

Re: [geo] Re: biochar as CDR and related nomenclature issues: CDRS = CDR + S (carbon dioxide removal + storage)

2013-11-20 Thread Ronal W. Larson
Henson hkeithhen...@gmail.com wrote: On Tue, Nov 19, 2013 at 9:22 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Keith cc list 1. Since this is a thread with a biochar theme, I thought we should compare a hypothetical biochar scenario with your solar power satellite (SPS

Fwd: [geo] Up in air: $impact/tonne CO2 emitted

2013-11-30 Thread Ronal W. Larson
Ken, Greg, Geo: Apologies for delay in response caused by visiting family, but I hope we can keep Greg's “ethics” dialog open a bit longer. I am pretty sure that Prof. Caldeira’s remarks below are intended to say we should not rely on net present value computations to justify

Re: [geo] CRS on GE

2013-12-09 Thread Ronal W. Larson
Ken, cc Greg, list 1. I agree this particular CRS sentence you picked out (shown in context below) was objectionable. I thank you for pointing it out. But there is plenty in this report on CDR - which is often totally missing in reports on geoengineering. I have met the principal

Re: [geo] CRS on GE

2013-12-09 Thread Ronal W. Larson
to point out how the use of the word 'geoengineering' to refer to approaches that do not pose any novel risks or governance challenges leads even careful people to say imprecise things that they don't really mean. On Monday, December 9, 2013, Ronal W. Larson wrote: Ken, cc Greg, list 1

[geo] Fwd: Special Issue Forest and Climate

2013-12-11 Thread Ronal W. Larson
List: 1. I believe this new Elsevier special issue on REDD+ (announcement below) relating forests and climate has more relationship to geoengineering than most “geo publications I see. This is despite the fact that I have so far failed to even see any mention of geoengineering, much less

Re: [geo] McDermott White Paper (2002) on accelerated carbonate weathering as a CCS approach

2013-12-13 Thread Ronal W. Larson
Ken, list etal (adding Greg Rau, who probably is closest to this) 1. The price per ton CO2 given at the bottom of Table 3 in the McDermott paper given by Ken a few days ago came to $20.70/ton CO2. Converting to 2013 $ (about 30% more over the 2001 $ used), metric units and carbon (rather

Re: [geo] McDermott White Paper (2002) on accelerated carbonate weathering as a CCS approach

2013-12-14 Thread Ronal W. Larson
up the paperwork and we'll contact our friends at the WTO ;-) [RWL: Deal. I’ll start contacting a few of my billionaire friends - as soon as you give the go-ahead. Greg From: Ronal W. Larson rongretlar...@comcast.net To: Ken Caldeira kcalde...@gmail.com; Greg Rau r...@llnl.gov Cc

Re: [geo] Re: Geoengineering The Sky is Not 'Normal' - HuffPo

2013-12-16 Thread Ronal W. Larson
List and Michael: 1. Thanks to Michael for alerting us to today’s report on the meeting that started this “normal-normalization” thread. I found the report well done, but with the usual qualification that most (80%-90%?) of the report summary refers to geoengineering as being the same as

Re: [geo] OPEN - Reversing climate warming by artificial atmospheric carbon-dioxide removal: can a Holocene-like climate be restored? - MacDougall - GRL - Wiley

2013-12-20 Thread Ronal W. Larson
wrote: On Fri, Dec 20, 2013 at 8:20 AM, Ronal W. Larson rongretlar...@comcast.net wrote: Keith cc Greg I appreciate your enthusiasm for the solar satellite approach, but I have my hands more than full with CDR (and specifically biochar). What you really need is a way to turn off

Re: [geo] OPEN - Reversing climate warming by artificial atmospheric carbon-dioxide removal: can a Holocene-like climate be restored? - MacDougall - GRL - Wiley

2013-12-20 Thread Ronal W. Larson
says. more follows - see link From: Ronal W. Larson rongretlar...@comcast.net To: Keith Henson hkeithhen...@gmail.com Cc: RAU greg gh...@sbcglobal.net Sent: Friday, December 20, 2013 8:20 AM Subject: Re: [geo] OPEN - Reversing climate warming by artificial atmospheric carbon-dioxide

[geo] Re: BP geologist says peak oil is here

2013-12-23 Thread Ronal W. Larson
List: 1.A friend just sent me this on peak oil: http://www.theguardian.com/environment/earth-insight/2013/dec/23/british-petroleum-geologist-peak-oil-break-economy-recession/print which leads one to a no-fee introductory article, with an oblique relationship to geoengineering, at:

Re: [geo] NOAA's Arctic 2013 report

2013-12-26 Thread Ronal W. Larson
Greg and list (adding Peter Flynn) 1. Thanks for bringing this NOAA report to our attention. Clearly a worsening situation - especially in ice volume (as area/extent have to soon radically go to zero to follow the non-linear path of ice volume.Until today I hadn’t thought of anything

Re: [geo] NOAA's Arctic 2013 report

2013-12-31 Thread Ronal W. Larson
Department of Mechanical Engineering University of Alberta peter.fl...@ualberta.ca cell: 928 451 4455 From: Ronal W. Larson [mailto:rongretlar...@comcast.net] Sent: December-26-13 10:14 PM To: RAU greg Cc: Geoengineering; Peter Flynn Subject: Re: [geo] NOAA's Arctic

Re: [geo] Severe warming ahead?

2014-01-02 Thread Ronal W. Larson
Greg etal: 1. Dr. Sherwood gives a short (3 min) video summary of his new findings at several places, such as: http://climatestate.com/2013/12/31/planet-likely-to-warm-by-4c-by-2100-scientists-warn/ 2. Realclimate has a good support for the new paper today from Drs. Michael Mann and

Re: [geo] Report release- A Civil Society Meeting on Geoengineering

2014-01-04 Thread Ronal W. Larson
Stephen, Andrew, Michael, list: cc Prof JM-A) I want to take a different tack. I think we need to engage more with Prof. Martinez-Alier - who is a serious scholar. I believe a number of CDR approaches could work for peasants. I am sure that biochar can - especially for EROI reasons

Re: [geo] Gender and Geoengineering - Buck - 2013 - Hypatia - Wiley

2014-01-06 Thread Ronal W. Larson
Andrew and list cc Holly Buck 1. I meant to respond earlier after reading the Christmas day piece below (which no longer is free and my draft is somehow blocked by my computer, although saved). I read it because I have been much impressed by other material by Ms. Buck. I didn’t find

Re: [geo] Gender and Geoengineering - Buck - 2013 - Hypatia - Wiley

2014-01-07 Thread Ronal W. Larson
party wing? Sorry I couldn’t spend more time on these several topics. Again, Holly, thanks. Ron cheers, Holly On Mon, Jan 6, 2014 at 8:57 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Andrew and list cc Holly Buck 1. I meant to respond earlier after

Re: [geo] Yale blog on SRM

2014-01-09 Thread Ronal W. Larson
Greg and list: 1. I’ll let others answer the “fair?” question. In general, I am pleased with what e360.yale have been doing. 2. I mostly was pleased that the word “geoengineering” was mostly (not always) preceded by “solar” in the article cited by Greg. Not pleased that the word

Re: [geo] Yale blog on SRM

2014-01-09 Thread Ronal W. Larson
+1 650 704 7212 kcalde...@carnegiescience.edu http://dge.stanford.edu/labs/caldeiralab https://twitter.com/KenCaldeira On Thu, Jan 9, 2014 at 1:34 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Greg and list: 1. I’ll let others answer the “fair?” question. In general, I am

Re: [geo] Case Study by Holly Buck on Haida Gwaii OIF demonstration

2014-01-14 Thread Ronal W. Larson
List with ccs 1. Thanks to Sean for the alert of a paper I think is important. Important on two grounds - the Haida/OIF controversy (I am not qualified to discuss, but think we have not heard enough) and the use of the term “Geoengineering” (where I have been regularly commenting and

Re: [geo] Polar Ice Melting Prompts US Military To Protect New Waterways

2014-01-14 Thread Ronal W. Larson
Bruce and list My impression(quick skim only) is that the May White House document http://www.whitehouse.gov/sites/default/files/docs/nat_arctic_strategy.pdf doesn’t say anything definitive. True? Ron On Jan 14, 2014, at 2:08 PM, French, Bruce bruce.fre...@yorkrsg.com wrote: US

Re: [geo] Meanwhile: 'Irreversible' Melting Threatens 'Considerable Increase' to Sea Level Rise

2014-01-14 Thread Ronal W. Larson
Greg etal Because this paper is behind a paywall, I can barely glean from their figures that they may be looking at a fifty year time horizon. Did they look at all at either SRM or CDR when using the term “irreversibility? (quotes in the original - why?) Ron On Jan 14, 2014, at 12:43

Re: [geo] Meanwhile: 'Irreversible' Melting Threatens 'Considerable Increase' to Sea Level Rise

2014-01-14 Thread Ronal W. Larson
of ice out of seawater in the winter. I wonder if this would be considered geoengineering? Keith On Tue, Jan 14, 2014 at 2:31 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Greg etal Because this paper is behind a paywall, I can barely glean from their figures

Re: [geo] Meanwhile: 'Irreversible' Melting Threatens 'Considerable Increase' to Sea Level Rise

2014-01-14 Thread Ronal W. Larson
. Ron On Jan 14, 2014, at 8:56 PM, Keith Henson hkeithhen...@gmail.com wrote: On Tue, Jan 14, 2014 at 5:03 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Keith etal (adding in John Nissen and Peter Flynn ) 1. Most interesting. I own a solar thermal system with the same heat pipe

[geo] Making ice (change of thread title)

2014-01-15 Thread Ronal W. Larson
Keith: I go through line by line - but deleting as much as I can. Mine all in bold caps. On Jan 15, 2014, at 10:28 AM, Keith Henson hkeithhen...@gmail.com wrote: On Tue, Jan 14, 2014 at 9:50 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Keith: Again thanks Re- being able

Re: [geo] IPCC: CDR must be considered

2014-01-17 Thread Ronal W. Larson
www.PODenergy.org Original Message Subject: Re: [geo] IPCC: CDR must be considered From: Ronal W. Larson rongretlar...@comcast.net Date: Thu, January 16, 2014 10:29 pm To: RAU greg gh...@sbcglobal.net Cc: Geoengineering geoengineering@googlegroups.com Greg and list: Three

Re: [geo] David Keith and Clive Hamilton debate

2014-01-19 Thread Ronal W. Larson
Brian etal: Few notes below. On Jan 19, 2014, at 11:52 AM, Brian Cartwright briancartwrig...@gmail.com wrote: Thanks, John, for the response. I'm also an advocate of boosting soil carbon with biochar but let me add a couple of comments. As Ron Larsen points out, biochar brings

Re: [geo] What Would Heidegger Say About Geoengineering? Clive Hamilton | ANTHEM

2014-01-19 Thread Ronal W. Larson
List: cc Ken, Charles, Andrew 1. I finally found the full Sept. 2013 paper at http://clivehamilton.com/what-would-heidegger-say-about-geoengineering/ - But you have to find the small “pdf” symbol there. 33 pages with language that is difficult for me as a non-philosopher (e.g. “Being”,

Re: [geo] What Would Heidegger Say About Geoengineering? Clive Hamilton | ANTHEM

2014-01-20 Thread Ronal W. Larson
://dge.stanford.edu/labs/caldeiralab https://twitter.com/KenCaldeira On Sun, Jan 19, 2014 at 2:08 PM, Ronal W. Larson rongre...@comcast.net wrote: List: cc Ken, Charles, Andrew 1. I finally found the full Sept. 2013 paper at http://clivehamilton.com/what-would-heidegger-say-about

Re: [geo] What Would Heidegger Say About Geoengineering? Clive Hamilton | ANTHEM

2014-01-20 Thread Ronal W. Larson
/KenCaldeira On Sun, Jan 19, 2014 at 2:08 PM, Ronal W. Larson rongre...@comcast.net wrote: List: cc Ken, Charles, Andrew 1. I finally found the full Sept. 2013 paper at http://clivehamilton.com/what-would-heidegger-say-about-geoengineering/ - But you have to find the small “pdf

Re: [geo] Rock stars rising?

2014-01-23 Thread Ronal W. Larson
Greg and list: There are many messages (and a few papers) of the advantages of combining rock dust and biochar. Inoculants are already commonplace. Sharing distribution costs would be a plus. The biochar community would welcome joint efforts at combining the two forms of CDR -

Re: [geo] Geoengineering in a World Risk Society - By Tina Sikka.

2014-02-02 Thread Ronal W. Larson
Greg and list: Not sure how Michael will respond, but I urge list members to look at www.coolplanet.com. This is the only group I know of that are already driving cars with this carbon negative slogan - but there are dozens of companies saying something similar about carbon-negative

[geo] Nordhaus book

2014-02-02 Thread Ronal W. Larson
List: The last (at least in my mail) issue of Science had a review (http://www.sciencemag.org/content/343/6169/371.full) of the recent book Climate Casino by Prof. William Nordhaus. In my mind a little more negative a review than deserved. A more positive review was given by Paul

Re: [geo] miseries.

2014-02-04 Thread Ronal W. Larson
Greg, Stephen, list Re your Other ideas: I have decided to spend time with a new group that I first heard about on Sunday. See http://citizensclimatelobby.org/ Strong support from Jim Hansen as they are pushing a 100% revenue neutral (therefore supportable by R's) carbon tax

Re: [geo] Olson gives Spoerl Lecture on geoengineering, climate change solutions | The Lawrentian

2014-02-09 Thread Ronal W. Larson
Dr. Calvin: 1. I'd like to follow up on your statement below: Better to get nutrients by pumping up and then pumping down the new green stuff --before it can decompose-- into deep waters that take a thousand years to begin resurfacing and then are spread out over 10k years.

Re: [geo] Olson gives Spoerl Lecture on geoengineering, climate change solutions | The Lawrentian

2014-02-12 Thread Ronal W. Larson
+ years old; it is not yet well known - but is growing very rapidly (as can be seen at www.biochar-international.org) g. There is a longer list. Ron On Tue, Feb 11, 2014 at 12:08 AM, Ronal W. Larson rongretlar...@comcast.net wrote: Dr. Calvin: My

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-17 Thread Ronal W. Larson
reduction is part of the thinking of this group perhaps the first step should be to prove it. If you don't prove it where does it leave you --- claiming a potential junk idea. Not very bright !! From: Ronal W. Larson rongretlar...@comcast.net To: Oliver Morton omeconom...@gmail.com Cc

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-17 Thread Ronal W. Larson
Ken with ccs. 1. I think you are being too hard below on the Royal Society Report. That report clearly states that it is made up of two approaches, whose names are not being criticized (CDR and SRM, in that order on page xi). It is not obvious why a name that combines two names

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-17 Thread Ronal W. Larson
Oliver and ccs. I mostly agree with all you say below, including your final Is that not.. question below. But I ask that you say more about two items: 1. How can your very large scale deployment of wind energy (highlighted below) fit into the Royal Society's two part (SRM and

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-18 Thread Ronal W. Larson
move to change. I thank you for what you are doing at the Guardian - and I urge this list to read your fantastic Eating the Sun - which is a great sales pitch for photosynthesis (and therefor biochar). Ron On Mon, Feb 17, 2014 at 10:53 PM, Ronal W. Larson rongretlar

Re: [geo] Visiting lecturer discusses moral quandaries in geoengineering | The Lawrentian

2014-02-22 Thread Ronal W. Larson
Bjornar etal 1. I also enjoyed the short IASS video. However, I was surprised that there was no mention there or at their web site of biochar. Any explanation for this omission? 2. Your talk had geoengineering in the title, but it seemed to be only on SRM. Will your

[geo] Re: Rocks to Rockets, Simple Stuff.

2014-02-22 Thread Ronal W. Larson
Keith and ccs: Yesterday, you wrote: PS. Biochar is a good idea in any case. It would be even better if the heat to make it came from a cheap renewable source and the off gas collected to make transport fuel. Both of your hopes are already standard (indeed mandatory if you

Re: [geo] Visiting lecturer discusses moral quandaries in geoengineering | The Lawrentian

2014-02-22 Thread Ronal W. Larson
Dr. Wigley, cc list: I am afraid I don't see the parallel you see between SRM and mitigation. I see and read about quite small opposition to most mitigation schemes (solar wind, energy efficiency). Yes from some on aesthetic grounds, Yes from some objecting to higher costs. Yes

[geo] Re: Rocks to Rockets, Simple Stuff.

2014-02-22 Thread Ronal W. Larson
Keith etal I respond below in bold, with [RWL: On Feb 22, 2014, at 7:23 PM, Keith Henson hkeithhen...@gmail.com wrote: On Sat, Feb 22, 2014 at 1:35 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Keith and ccs: Yesterday, you wrote: PS. Biochar is a good idea in any case

Re: [geo] Visiting lecturer discusses moral quandaries in geoengineering | The Lawrentian

2014-02-23 Thread Ronal W. Larson
: Best of luck on the PhD thesis. Ron Bjørnar Bjørnar Egede-Nissen PhD Candidate Department of Political Science Social Science Centre University of Western Ontario London, Ontario N6A 5C2 Canada Email: beged...@uwo.ca On 22 February 2014 15:54, Ronal W. Larson rongretlar

[geo] A short biochar video

2014-02-23 Thread Ronal W. Larson
List: I hesitate to send this on, but the link below leads to the best short (half-hour) video on biochar I have seen (and it just came in - about 18 months later than was probably planned). It answers several questions raised recently on this list. Obviously very positive and

Re: [geo] Restorative Ocean Geoengineering

2014-02-24 Thread Ronal W. Larson
Robert and list (cc William Calvin, who has also responded, and I hope will comment on my questions) 1. Nice talk. Thanks for sharing. 2. Obviously you have used a lot of material (and credited it) from NASA's Dr. Jonathon Trent, who has provided more detail on your approach in a June

[geo] NAS-Royal Society report - recent new report release

2014-03-06 Thread Ronal W. Larson
List:cc Drs. Caldeira and Rau 1. I hope we can have some comment on last week's release of the NAS - Royal Society report entitled: A Discussion on Climate Change: Evidence and Causes It can be downloaded for free at

[geo] Re: CoP21, Paris, December 2015

2014-03-12 Thread Ronal W. Larson
List cc Drs Richter and Bonnelle 1. On 28 February, Dr. Bonnelle sent the list (and others) a notice of his preparing a manuscript for COP21. I responded and yesterday received a new copy of that. Some of you may wish to ask him for the revised version. 2. At the same time, I received the

Re: [geo] NAS-Royal Society report - recent new report release

2014-03-13 Thread Ronal W. Larson
? If it's a small number, then it's just a matter of tapping enough energy to do it. It's not going to take more than a tiny fraction of what the Sun puts out. On Wed, Mar 12, 2014 at 7:53 PM, Ronal W. Larson rongretlar...@comcast.net wrote: Greg and list This is a return

Re: [geo] Friends of the earth March 2014 advance briefing on AR5 Working Group 3 report

2014-03-16 Thread Ronal W. Larson
David, list, et al Re your ...what papers question below, I suggest that for me the most powerful are the many from Jim Hansen - clearly saying that even 350 ppm is probably not enough. He has mentioned in his papers both biochar and afforestation in the CDR area. I presume you

Re: [geo] Friends of the earth March 2014 advance briefing on AR5 Working Group 3 report

2014-03-16 Thread Ronal W. Larson
John, list etal: I believe you have misread the FoE material a little. I take some hopes from their predictions of what is coming in Vol. III of AR5. I presume they would not have written as they have if they did not have a copy of a draft. The previous leaks reported by Reuters

Re: [geo] Friends of the earth March 2014 advance briefing on AR5 Working Group 3 report

2014-03-16 Thread Ronal W. Larson
iPad On Mar 16, 2014, at 11:16 AM, Ronal W. Larson rongretlar...@comcast.netmailto:rongretlar...@comcast.net wrote: John, list etal: I believe you have misread the FoE material a little. I take some hopes from their predictions of what is coming in Vol. III of AR5. I presume they would

Re: [geo] Friends of the earth March 2014 advance briefing on AR5 Working Group 3 report

2014-03-17 Thread Ronal W. Larson
John, David, list etal: 1. You have correctly quoted Dr. Hansen below for 6 degrees as his best guess on climate sensitivity (the temperature increase expected with a doubling in CO2). But that was a 2008 paper. Today, he has revised downward, and is using the range 3-4 degrees as a

Re: [geo] Friends of the earth March 2014 advance briefing on AR5 Working Group 3 report

2014-03-17 Thread Ronal W. Larson
the albedo loss. -- On Mon, Mar 17, 2014 at 12:37 AM, Ronal W. Larson rongretlar...@comcast.net wrote: David, list, etal a few inserts below On Mar 16, 2014, at 9:53 AM, Hawkins, Dave dhawk...@nrdc.org wrote: FWIW, I don't think that the reduce paragraph in the FOE release

Re: [geo] Capturing the Imagination: Prospects for Direct Air Capture as a Climate Measure (Case Study) | Geoengineering Our Climate?

2014-03-26 Thread Ronal W. Larson
Andrew, List 1.Thanks for catching this article. It is not clear from the excerpt below that this is a short piece by Duncan McLaren, who has written quite a bit on Geoengineering and especially CDR. One free one on more than DAC is at:

Re: [geo] How can research into geoengineering be governed to limit its environmental and political risks?

2014-04-03 Thread Ronal W. Larson
Greg, Ms. Talberg, etal 1. To repeat the original question posed by MIT, and for which Ms. Anita Talberg (Neetberg) sent this list an invitation: How can research into climate engineering be governed to limit its environmental and political risks? 2. I suggest that few will want

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