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John Nissen
,
Sev Clarke
2
4:11 AM
China opens new Arctic trade route – but obstacles will prevent its wider use
John, Deploying my Ice Shields system of largely-grounded or land-linked ice arrays interspersed with
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China opens new Arctic trade route – but obstacles will prevent its wider use
John, Deploying my Ice Shields system of largely-grounded or land-linked ice arrays interspersed with
4:11 AM
John Nissen
, …
oswald....@hispeed.ch
3
Aug 21
A conspiracy theory about geoengineering has taken off in the US
Hi John, this development (among others) shows clearly that SAI will not be done for at least the
unread,
A conspiracy theory about geoengineering has taken off in the US
Hi John, this development (among others) shows clearly that SAI will not be done for at least the
Aug 21
John Nissen
, …
Douglas Grandt
8
Aug 20
Re: [HPAC] The Emperor's New Clothes
A friend posted this cartoon on facebook this morning … simple and elegant: It begged asking the
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Re: [HPAC] The Emperor's New Clothes
A friend posted this cartoon on facebook this morning … simple and elegant: It begged asking the
Aug 20
John Nissen
Aug 17
Flood risk for UK mentioned in The Sunday Times
It's far worse than they suggest. A Thames barrage/dyke will be needed. https://share.google/
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Flood risk for UK mentioned in The Sunday Times
It's far worse than they suggest. A Thames barrage/dyke will be needed. https://share.google/
Aug 17
John Nissen
, …
Michael MacCracken
4
Aug 15
Nordhaus raises ugly head
Hi Mike, The sentence from the W Nordhaus nephew's article [1] that did it for me was this: But
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Nordhaus raises ugly head
Hi Mike, The sentence from the W Nordhaus nephew's article [1] that did it for me was this: But
Aug 15
John Nissen
2
Aug 14
Models of glacial collapse in Antarctica improve predictions of sea-level rise
Hi everyone, This article has some interesting estimates of sea level rise and its impact: https://
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Models of glacial collapse in Antarctica improve predictions of sea-level rise
Hi everyone, This article has some interesting estimates of sea level rise and its impact: https://
Aug 14
John Nissen
,
Douglas Grandt
2
Aug 13
China cracks Arctic shipping route in new era for global trade
The Telegraph article warrants some context that, coincidentally, I discovered this morning which
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China cracks Arctic shipping route in new era for global trade
The Telegraph article warrants some context that, coincidentally, I discovered this morning which
Aug 13
rob...@rtulip.net
, …
Marshall Mermell
29
Aug 8
Ted Parson HPAC 30 April: Insights from the Montreal Protocol for Climate Interventions
Robert and Glenn, Thank you both for this meeting. Warm regards, Marshall Marshall Mermell Advanced
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Ted Parson HPAC 30 April: Insights from the Montreal Protocol for Climate Interventions
Robert and Glenn, Thank you both for this meeting. Warm regards, Marshall Marshall Mermell Advanced
Aug 8
John Nissen
2
Aug 4
Re: Last chance to submit an abstract to AGU26! Deadline 5 August.
Dear Peter, I've not heard from you, so I am submitting this abstract myself, on behalf of PRAG,
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Re: Last chance to submit an abstract to AGU26! Deadline 5 August.
Dear Peter, I've not heard from you, so I am submitting this abstract myself, on behalf of PRAG,
Aug 4
John Nissen
,
Douglas Grandt
2
Aug 4
Re: [HPAC] New Frontiers in Climate Perspective on climate stabilisation and climate overshoot
John, Thanks for reiterating “urgent” and admonishing not to wait for consent of those who say “hang
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Re: [HPAC] New Frontiers in Climate Perspective on climate stabilisation and climate overshoot
John, Thanks for reiterating “urgent” and admonishing not to wait for consent of those who say “hang
Aug 4
John Nissen
Aug 3
Dangerous summers: How heatwaves and wildfires change life across Europe
https://share.google/dksrpRYsWl3QhVBOQ
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Dangerous summers: How heatwaves and wildfires change life across Europe
https://share.google/dksrpRYsWl3QhVBOQ
Aug 3
John Nissen
, …
PR CARTER
5
Aug 3
Re: [HPAC] Four billion dead?
Worst of all climate situations Immediate Cooling Arctic region (+ will cool N. hemisphere) or we are
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Re: [HPAC] Four billion dead?
Worst of all climate situations Immediate Cooling Arctic region (+ will cool N. hemisphere) or we are
Aug 3
John Nissen
Jul 27
Re: Tony Juniper CBE and others share their thoughts on LinkedIn
Hi Peter, Somebody on LinkedIn has belatedly noticed an anti-geoengineering letter in the Guardian
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Re: Tony Juniper CBE and others share their thoughts on LinkedIn
Hi Peter, Somebody on LinkedIn has belatedly noticed an anti-geoengineering letter in the Guardian
Jul 27
rob...@rtulip.net
Jul 21
The Albedo Imperative
Conversation on The Albedo Imperative between Robbie Tulip and Gene Fry, explaining in fairly simple
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The Albedo Imperative
Conversation on The Albedo Imperative between Robbie Tulip and Gene Fry, explaining in fairly simple
Jul 21
John Nissen
, …
rob...@rtulip.net
5
Jul 19
Fwd: [HPAC] Smoked out
Hi Robert, Of course I agree with you. And I appreciate your cartoon, though it needs to be a bit
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Fwd: [HPAC] Smoked out
Hi Robert, Of course I agree with you. And I appreciate your cartoon, though it needs to be a bit
Jul 19
John Nissen
2
Jul 17
Thousands will have died in UK's unprecedented May and June heatwaves - BBC News
The headline is here: Michelle Roberts (BBC News, 13 July 2026) More than 2700 people may have died
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Thousands will have died in UK's unprecedented May and June heatwaves - BBC News
The headline is here: Michelle Roberts (BBC News, 13 July 2026) More than 2700 people may have died
Jul 17
Ron Baiman
Jul 15
Recording of Laurie Laybourn_Climate tipping point security blind spot_HPAC presentation
Dear Colleagues, Laurie Laybourn_The Security Blind Spot: Climate Tipping Points_ HPAC_Ju... https://
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Recording of Laurie Laybourn_Climate tipping point security blind spot_HPAC presentation
Dear Colleagues, Laurie Laybourn_The Security Blind Spot: Climate Tipping Points_ HPAC_Ju... https://
Jul 15
Douglas Grandt
2
Jul 13
“Cutting fossil fuel emissions is the only thing that changes the path” —Ingmar Rentzhog (Forbes 9 July)
Hans, Excellent comment, especially well placed on Ingmar's photo and post about his invitation
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“Cutting fossil fuel emissions is the only thing that changes the path” —Ingmar Rentzhog (Forbes 9 July)
Hans, Excellent comment, especially well placed on Ingmar's photo and post about his invitation
Jul 13
John Nissen
Jul 11
Global warming already causing crop losses of over $20 billion a year
Global warming already causing crop losses of over $20 billion a year | New Scientist https://share.
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Global warming already causing crop losses of over $20 billion a year
Global warming already causing crop losses of over $20 billion a year | New Scientist https://share.
Jul 11
John Nissen
, …
Ron Baiman
5
Jul 11
Fwd: [HPAC] 3:00 -4:30 PM EDT July 9 Laurie Laybourn HPAC Presentation_The Security Blind Spot: The New Climate Reality and Tipping Points
Dear Laurie, Thanks for your excellent talk and responses to questions [1]. As you said, the
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Fwd: [HPAC] 3:00 -4:30 PM EDT July 9 Laurie Laybourn HPAC Presentation_The Security Blind Spot: The New Climate Reality and Tipping Points
Dear Laurie, Thanks for your excellent talk and responses to questions [1]. As you said, the
Jul 11
John Nissen
, …
DrPete Sudbury
7
Jul 6
Global heat stress intensification and its expanding footprint
Hi Doug, Thanks for those jet stream shots: very revealing. I expect forecasters follow jet stream
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Global heat stress intensification and its expanding footprint
Hi Doug, Thanks for those jet stream shots: very revealing. I expect forecasters follow jet stream
Jul 6
John Nissen
, …
Dr Tom Harris
8
Jul 1
AI on realistic policy options
Hi, This interview from Nick Breeze with Roger Hallam is worth a worth with Jan's comments in
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AI on realistic policy options
Hi, This interview from Nick Breeze with Roger Hallam is worth a worth with Jan's comments in
Jul 1
John Nissen
, …
Tom Goreau
11
Jun 29
Re: [HPAC] Some highly interesting intricacies to cool down a water planet - we have to understand in how far we can cool down Earth as the oceans will work against it
Thanks, Jan! It's more complicated than we can realize! From: Jan Umsonst <joum...@gmail.com
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Re: [HPAC] Some highly interesting intricacies to cool down a water planet - we have to understand in how far we can cool down Earth as the oceans will work against it
Thanks, Jan! It's more complicated than we can realize! From: Jan Umsonst <joum...@gmail.com
Jun 29
John Nissen
Jun 28
Re: Accelerating increase in the duration of heatwaves under global warming | Nature Geoscience
Hi Renaud, I'd already spotted this article. I find that papers like this that depend upon models
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Re: Accelerating increase in the duration of heatwaves under global warming | Nature Geoscience
Hi Renaud, I'd already spotted this article. I find that papers like this that depend upon models
Jun 28
Metta W Spencer
Jun 26
Hi, I'm eager to see you as a participant in our upcoming Economics Inquiry. It begins this
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Hi, I'm eager to see you as a participant in our upcoming Economics Inquiry. It begins this
Jun 26
John Nissen
Jun 24
Atlantic 'cold blob' is responsible for shifts in the Indian summer monsoon [?!]
Atlantic 'cold blob' is responsible for shifts in the Indian summer monsoon that threaten
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Atlantic 'cold blob' is responsible for shifts in the Indian summer monsoon [?!]
Atlantic 'cold blob' is responsible for shifts in the Indian summer monsoon that threaten
Jun 24
John Nissen
, …
PR CARTER
6
Jun 18
Re: [HPAC] Not Just Another “Super” El Niño
Hi Peter, I don't think there is any risk of overcooling by SAI, as Jan suggests. If the sea
unread,
Re: [HPAC] Not Just Another “Super” El Niño
Hi Peter, I don't think there is any risk of overcooling by SAI, as Jan suggests. If the sea
Jun 18
John Nissen
Jun 18
Re: Arctic albedo today
Hi Tom, Thanks for the photos. I took some poor ones of the same subject, flying to Canada from
unread,
Re: Arctic albedo today
Hi Tom, Thanks for the photos. I took some poor ones of the same subject, flying to Canada from
Jun 18
rob...@rtulip.net
,
Lucinda Shearman
3
Jun 17
Insurance and Planetary Solvency: Recording & Summary - Sandy Trust HPAC
Hi all, The newly edited S. Trust video is on the Drive ready for uploading. Have a great day.
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Insurance and Planetary Solvency: Recording & Summary - Sandy Trust HPAC
Hi all, The newly edited S. Trust video is on the Drive ready for uploading. Have a great day.
Jun 17
Metta W Spencer
Jun 13
Join Our Economics Inquiry – Starts June 24!
Join Our Economics Inquiry Starts June 24! This is one small planet with a lot of ambitious
unread,
Join Our Economics Inquiry – Starts June 24!
Join Our Economics Inquiry Starts June 24! This is one small planet with a lot of ambitious
Jun 13