Ocean mixing better than CDR for temperature regulation

[Tom Goreau]

The primary factor affecting the cooling efficiency of carbon dioxide removal is the coefficient of vertical heat exchange in the ocean, the second factor is the effective radiation forcing caused by changes in CO2 concentration (see below).

 

This shows that we should focus much more on mechanisms that directly cool surface waters ocean, such as thermodynamic geoengineering, ocean thermal energy conversion, and cloud brightening, which are now ignored due to the focus on DAC, BECCS, and other popular boondoggles.

 

 

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

Chief Scientist, Blue Regeneration SL
President, Biorock Technology Inc.

Technical Advisor, Blue Guardians Programme, SIDS DOCK

37 Pleasant Street, Cambridge, MA 02139

gor...@globalcoral.org
www.globalcoral.org
Skype: tomgoreau
Tel: (1) 617-864-4226 (leave message)

 

Books:

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

http://www.crcpress.com/product/isbn/9781466595392

 

Innovative Methods of Marine Ecosystem Restoration

http://www.crcpress.com/product/isbn/9781466557734

 

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

 

 

 

[Kevin Wolf]

Tom,

Don't forget to add to your list dimethyl sulfide from phytoplankton that can be produced from ocean iron and mineral fertilization.

• Charlson, R. J., Lovelock, J. E., Andreae, M. O. & Warren, S. G. Oceanic phytoplankton, atmospheric sulphur, cloud albedo and climate. Nature 326, 655–661 (1987).

  Article  CAS  Google Scholar 

• Wang, S., Maltrud, M. E., Burrows, S. M., Elliott, S. M. & Cameron-Smith, P. Impacts of shifts in phytoplankton community on clouds and climate via the sulfur cycle. Glob. Biogeochem. Cycles 32, 1005–1026 (2018).

Kevin

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[Tom Goreau]

Thanks, Kevin! I’d include phytoplankton DMS in cloud brightening (along with Stephen Salter salting the air with salt spray), if it works as well as hoped, but the global SO2 maps suggested it is a minor source of SO2 compared to volcanic emissions and high sulfur coal burning.

[Greg Rau]

Thanks Tom. Does this mean that one process that addresses both is the winner?: 

Also, doesn’t surface ocean warming slow down vertical heat mixing and thus provides positive feedback to GW?: https://www.scientificamerican.com/article/is-a-mega-ocean-current-about-to-shut-down/#:~:text=Why%20is%20it%20weakening%3F,in%20the%20past%201%2C000%20years.

Greg

On Dec 27, 2023, at 5:33 AM, Tom Goreau <gor...@globalcoral.org> wrote:



The primary factor affecting the cooling efficiency of carbon dioxide removal is the coefficient of vertical heat exchange in the ocean, the second factor is the effective radiation forcing caused by changes in CO2 concentration (see below).

 

This shows that we should focus much more on mechanisms that directly cool surface waters ocean, such as thermodynamic geoengineering, ocean thermal energy conversion, and cloud brightening, which are now ignored due to the focus on DAC, BECCS, and other popular boondoggles.

 

<image001.png>

 

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

Chief Scientist, Blue Regeneration SL
President, Biorock Technology Inc.

Technical Advisor, Blue Guardians Programme, SIDS DOCK

37 Pleasant Street, Cambridge, MA 02139

gor...@globalcoral.org
www.globalcoral.org
Skype: tomgoreau
Tel: (1) 617-864-4226 (leave message)

 

Books:

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

http://www.crcpress.com/product/isbn/9781466595392

 

Innovative Methods of Marine Ecosystem Restoration

http://www.crcpress.com/product/isbn/9781466557734

 

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

 

 

 

--

[Jim Baird]

Thermodynamic Geoengineering promotes vertical heat mixing.

 

 

Furthermore, the coefficient of expansion of water is half at a depth of 1000 meters it is at the tropical surface per the following graphic.

Moving surface heat to 1000 meters as Thermodynamic Geoengineering provides, produces an average depth of 500 meters, which would decrease thermal expansion by about 25%. Plus, tropical surface heat moved into depths is unavailable to melt icecaps, which is  the origin of about 21% of the recorded sea level rise of the past two decades. And tropical typhoons are exacerbated by excess surface heat.

Win, win, win.

 

From: carbondiox...@googlegroups.com On Behalf Of Greg Rau
Sent: December 27, 2023 9:18 AM
To: Tom Goreau <gor...@globalcoral.org>
Cc: CarbonDiox...@googlegroups.com; Healthy Planet Action Coalition <healthy-planet-...@googlegroups.com>
Subject: Re: [CDR] Ocean mixing better than CDR for temperature regulation

 

Thanks Tom. Does this mean that one process that addresses both is the winner?: 

To view this discussion on the web visit https://groups.google.com/d/msgid/CarbonDioxideRemoval/66D02A2F-1AD9-4DA4-A5BB-84923E4D72D4%40sbcglobal.net.