On Feb 14, 2023, at 8:00 PM, 'Doug Grandt' via Healthy Planet Action Coalition (HPAC) <healthy-planet-...@googlegroups.com> wrote:
--This should be interesting … or infuriatingMichael Mann posted the following on his Facebook page this afternoonWednesday 11am (EST), 4pm (UK)Thursday 3am (AEDT)I'll be talking about geoengineering with the great Michael Smerconish, tomorrow (Wednesday) 11am ET, SiriusXM:
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On Feb 14, 2023, at 8:30 PM, James Hansen <jimeh...@gmail.com> wrote:
Absolutely! can´t wait to read it and tell people about it!
Maybe, hopefully, some will then finally understand that the activists in prison are NOT the people who should be there..
Best,
Maiken
Hi Jim,
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-- ****** Dr. Maiken Winter Bahnhofstr. 12 82399 Raisting 08807 9280544
Thursday 3am (AEDT)
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Doug GrandtSent from my iPhone (audio texting)
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How do you undertake meaningful development without field testing?
A useful comparison that was used to defeat a ban on using animals to train surgeons. It was done as an ad, “ Today the doctor will do life or death surgery on your daughter. Today is the first time he has operated in reality and the first time that he has carried this operation. Previously he would have learned using animals but this has been banned. Do you want this future?”
It is stupid to think that we can develop what is likely to be an essential technology without actual field trials. And the idea that we will try it at scale with to testing or ramp up is not remotely creditable.
David Sevier
Carbon Cycle Limited
248 Sutton Common Road
Sutton, Surrey SM3 9PW
England
Tel 44 (0) 208 288 0128
From: geoengi...@googlegroups.com <geoengi...@googlegroups.com> On Behalf Of H simmens
Sent: Wednesday, February 15, 2023 5:42 PM
Cc: hsim...@gmail.com; Doug Grandt <answer...@mac.com>; Planetary Restoration <planetary-...@googlegroups.com>; healthy-planet-action-coalition <healthy-planet-...@googlegroups.com>; geoengineering <geoengi...@googlegroups.com>; John Nissen <johnnis...@gmail.com>; Robert Tulip <rob...@rtulip.net>; Robert Chris <robert...@gmail.com>; Rebecca personal em <rebe...@gmail.com>
Subject: Re: [geo] Michael Mann - SIRIUS - geoengineering
For those who may have missed Michael Mann's conversation an hour ago, there was not surprisingly little new. He did clearly and unambiguously support more research into solar geo engineering as long as it does not involve field testing. He invoked the familiar bogeymen - adverse unintended consequences, termination shock and moral hazard as reasons why it should not be deployed. He did not distinguish between SAI and other methods. To Smerconish’s credit he did bring up mount Pinatubo and Mann acknowledged that it lowered temperatures.
There was absolutely no discussion as is typical of these conversations of the relative risks and benefits of solar geoengineering versus ERA/emission reductions alone.
By the way Smerconish is one of the very few talk programs with a large base of listeners that is down the middle politically.
You may be able to listen to the conversation at the link below, though you may need to be an XM subscriber. The conversation starts at 11:05 am.
Thursday 3am (AEDT)
Click LISTEN LIVE
You may have to get the App if you don’t already subscribe. I did … hope it works!!
Doug Grandt
Sent from my iPhone (audio texting)
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--
Jim Hansen, Director
Climate Science, Awareness and Solutions Program
Columbia University Earth Institute
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Dear Prof Hansen
I have previously corresponded with Dan but not directly with you.
I note that you are working on a final revision of your Warming in the Pipeline paper. I regard this as one of the most significant pieces of climate research to have emerged for many years and is, or at least should be, a game changer in policymaking terms.
May I be so bold as to ask
you to consider two revisions. First, could you separate out
the effect of different GHGs, in particular CO2 and CH4. The
reason for this request is that many are arguing that because
of its high GWP and short residence, atmospheric methane
should be reduced by either or both reducing emissions and
enhanced atmospheric oxidation. It would be helpful to
understand the extent to which reducing one GHG against
another would accelerate reductions in surface temperature, if
at all. Might the system feedbacks compensate for the
different RF effects of different GHGs resulting in no
differential cooling effect?
Secondly, I and many others have found the policy conclusions in the paper a tangential diversion from the science to the extent that they undermine the significance of the science. Might the paper not have more impact if it stuck to the science and you issued a separate commentary that addressed its policy implications.
Regards
Dr Robert Chris
In your coming paper, do your calculations assume that further emissions are going to occur, or is the quite concerning predicted temperature rise from just the current gases in the atmosphere (which would mean things are likely to be even worse)? Equally is there any discussion and prediction about the uneven distribution of the temperature rise in northern and more southerly regions. These would be expected to experience a lot more than the average rise. I have not been able to look at your preprint.
David Sevier
Carbon Cycle Limited
248 Sutton Common Road
Sutton, Surrey SM3 9PW
England
Tel 44 (0) 208 288 0128
Thursday 3am (AEDT)
Click LISTEN LIVE
You may have to get the App if you don’t already subscribe. I did … hope it works!!
Doug Grandt
Sent from my iPhone (audio texting)
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--
Jim Hansen, Director
Climate Science, Awareness and Solutions Program
Columbia University Earth Institute
--
Jim Hansen, Director
Climate Science, Awareness and Solutions Program
Columbia University Earth Institute
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