Re: [HPAC] Re: Hot Arctic ahead

[John Nissen]

Hi Tom,

We are clearly in an emergency situation for all to see. The only way out is for rapid cooling at scale to increase Arctic sea ice cover, restore Arctic albedo, halt Greenland’s meltdown, save the permafrost, and keep AMOC going, all of which require the Arctic temperature to be lowered. Only SAI has a decent chance, so we should be preparing for deployment ASAP.

But who is going to do it? I have written to the EU and UK separately suggesting they collaborate and take a lead.  Norway, Canada and India might join in. Unfortunately the US and Russia are out. Having China would be ideal, IMHO. 

 Cheers John 

On Wed, 22 Apr 2026, 2:41 pm Tom Goreau, <gor...@globalcoral.org> wrote:

It will be especially important to document changes in temperature and albedo in the Arctic this year. Peter Wadhams’ forecast of an Ice-Free Arctic Summer may be nigh!

 

Notice the residual HotSpots in the Southern Hemisphere Winter in the South Indian Ocean and South Atlantic! Bleaching HotSpots are hotter than 1C above the average historical temperature at those sites at the WARMEST time of year. That persistence is extraordinary, and may mark a shift in ocean circulation patterns. The one near Kergulen has now been there for a couple of years.

 

 

From: John Dixon <john....@uq.edu.au>
Date: Wednesday, April 22, 2026 at 09:28
To: Tom Goreau <gor...@globalcoral.org>
Subject: RE: Hot Arctic ahead

Thanks for clarifying that the map is seasonal (May-Aug) only. Yep, the reef has been very severely bleached during recent years.  MCB is yet to be demonstrated successfully – but will be discussed in a forthcoming HPAC forum event

John

 

From: Tom Goreau <gor...@globalcoral.org>
Sent: Wednesday, 22 April 2026 11:11 PM
To: John Dixon <john....@uq.edu.au>; Peter Wadhams <peter....@gmail.com>; Ulyana Nadia Horodyskyj <ulyana.h...@colorado.edu>
Cc: Peter Goreau <spanningth...@gmail.com>; Metta W Spencer <mspe...@web.net>; 'Douglas Grandt' via Healthy Planet Action Coalition (HPAC) <healthy-planet-...@googlegroups.com>
Subject: Re: Hot Arctic ahead

 

This map is a forecast for May-August, which is winter in the GBR. There was very severe bleaching across the South Pacific earlier this year, but the GBR got off lightly this year. However, cumulative stresses of the previous severe bleaching years have left GBR coral cover at the lowest ever.

 

From: John Dixon <john....@uq.edu.au>
Date: Wednesday, April 22, 2026 at 08:39
To: Tom Goreau <gor...@globalcoral.org>, Peter Wadhams <peter....@gmail.com>, Ulyana Nadia Horodyskyj <ulyana.h...@colorado.edu>
Cc: Peter Goreau <spanningth...@gmail.com>, Metta W Spencer <mspe...@web.net>, 'Douglas Grandt' via Healthy Planet Action Coalition (HPAC) <healthy-planet-...@googlegroups.com>
Subject: RE: Hot Arctic ahead

Hi Tom

 

This coral reef stress map appears to show no stress for the Qld Barrier Reef, although other parts of southern oceans have “alert level 2”. Is this a lack of data?

 

John

 

From: healthy-planet-...@googlegroups.com <healthy-planet-...@googlegroups.com> On Behalf Of Tom Goreau
Sent: Wednesday, 22 April 2026 10:31 PM
To: Peter Wadhams <peter....@gmail.com>; Ulyana Nadia Horodyskyj <ulyana.h...@colorado.edu>
Cc: Peter Goreau <spanningth...@gmail.com>; Metta W Spencer <mspe...@web.net>; 'Douglas Grandt' via Healthy Planet Action Coalition (HPAC) <healthy-planet-...@googlegroups.com>
Subject: [HPAC] Hot Arctic ahead

 

 

Above is the latest summer forecast for the Coral Bleaching HotSpot, a measure of extreme high Sea Surface Temperature (SST), with dark red being the most extremely severe excess above historical baselines.

 

The El Niño now underway is affecting the coral reefs of the Central Pacific, but recent estimates say that the corals in these areas are already 99.9% dead, so the bleaching impacts will affect those last surviving 0.1%.

 

More alarming is the situation in the Arctic Basin, which forecasts total extreme temperatures. Could 2026 see complete floating ice melt in the Arctic and accelerated albedo feedback?

 

 

Thomas J. F. Goreau, PhD
President, Global Coral Reef Alliance

Chief Scientist, Biorock Technology Inc., Blue Regeneration SL

Technical Advisor, Blue Guardians Programme, SIDS DOCK

37 Pleasant Street, Cambridge, MA 02139

gor...@globalcoral.org
www.globalcoral.org
Phone: (1) 857-523-0807 (leave message)

 

Books:

Geotherapy: Innovative Methods of Soil Fertility Restoration, Carbon Sequestration, and Reversing CO2 Increase

https://www.routledge.com/Geotherapy-Innovative-Methods-of-Soil-Fertility-Restoration-Carbon-Sequestration-and-Reversing-CO2-Increase/Goreau-Larson-Campe/p/book/9781466595392

 

Innovative Methods of Marine Ecosystem Restoration

https://www.taylorfrancis.com/books/oa-edit/10.1201/b14314/innovative-methods-marine-ecosystem-restoration-robert-kent-trench-thomas-goreau

 

On the Nature of Things: The Scientific Photography of Fritz Goro

 

Geotherapy: Regenerating ecosystem services to reverse climate change

 

No one can change the past, everybody can change the future

 

It’s much later than we think, especially if we don’t think

 

Those with their heads in the sand will see the light when global warming and sea level rise wash the beach away

 

“When you run to the rocks, the rocks will be melting, when you run to the sea, the sea will be boiling”, Peter Tosh, Jamaica’s greatest song writer

 

“The Earth is not dying, she is being killed” U. Utah Phillips

 

“It is the responsibility of intellectuals to speak the truth and expose lies” Noam Chomsky

 

 

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