Re: [CDR] terrestrial C cycle


Frank Strie
 

Our colleagues of the EBI  = European Biochar Industry Consortium have published a valuable resource about PyCCS Pyrogenic Carbon Capture and Sequestration-Storage-Sink.
You can see it on the EBI website.


On Sun, 17 Oct. 2021, 12:51 am Paul S Anderson, <psanders@...> wrote:

John,

 

Thanks for that useful “Plain Language Summary,”   The linked full article says that there is not much benefit of growing more trees (over generalized statement, but if this shoe fits, then wear it.)   So AR (afforestation / reforestation) is not doing much CDR because it lacks STORAGE, which is S.    We need CDRS, emphasizing that storage is also accomplished. 

 

The bright side of the AR as being  only short term (or almost neutral) is that there is a developed and economical / sustainable way to accomplish the storage of 50% of that AR removal.   And that way is called Biochar.   Biochar removes no CO2, but it stores CO2e for looooong periods.

 

I have a document (and a short video) about this, entitled “Understanding Carbon Dioxide Removal and Storage (CDRS)”    www.woodgas.energy/resources        And here are two graphics from page 12.

 

 

 

 

Please note that our standard naming of CDR technologies have different “interpretations / understandings” about the various words, often using the same words to define other words:

Capture                to remove CO2 from the atmosphere

Storage                to hold LONG TERM the removed CO2   

Removal              BOTH having captured and stored the CO2

AR                          Very weak on storage

CCS                        carbon capture and storage (but is specifically applied to BECCS, not to all CCS)

CCUS                     just add in the word “use” and that somehow makes it different

DAC                       ONLY the capture   (deep geologic storage, etc is NOT included in that designation))

DACCS                  BOTH the capture and storage, although storage issues are major)

Biochar                 ALL about storage;  totally dependent on AR and crop growth for the removal)

CDR                        Usually understood to mean both capture and storage, but CCS name is taken already.

CDRS                     Just adding the “S” to emphasize Storage that some CDR (AR and DAC) do not accomplish.

 

In other words, our terminology is sloppy.  Its usage and dependent on “general understanding by the experts.”   Which means that the general public could be easily confused.   

 

PLEASE read the document.   PLAEASE use it, or suggest changes and we can change it together.

 

[Note on a possible change:  I believe that EW and  CCO “carbon concretions in  oceans – including biological” should be separated from the Engineered capture of DAC and CCE.  ]

 

Paul

 

Doc / Dr TLUD / Paul S. Anderson, PhD --- Website:   www.drtlud.com

         Email:  psanders@...       Skype:   paultlud

         Phone:  Office: 309-452-7072    Mobile & WhatsApp: 309-531-4434

Exec. Dir. of Juntos Energy Solutions NFP    Go to: www.JuntosNFP.org 

Inventor of RoCC kilns and author of Biochar white paper :  See  www.woodgas.energy/resources  

Author of “A Capitalist Carol” (free digital copies at www.capitalism21.org)

         with pages 88 – 94 about solving the world crisis for clean cookstoves.

 

From: carbondioxideremoval@... <carbondioxideremoval@...> On Behalf Of John Crusius
Sent: Friday, October 15, 2021 6:14 PM
To: Carbon Dioxide Removal <CarbonDioxideRemoval@...>
Subject: [CDR] terrestrial C cycle

 

[This message came from an external source. If suspicious, report to abuse@...]

From this month's GRL, accessible via open access

Plain Language Summary

In the past decades, elevating CO2 concentration and rising temperature have promoted the photosynthesis of European vegetation, thus increasing the greenness of vegetation. However, whether these processes could promote the ability of terrestrial ecosystems to absorb CO2 still lacks systematic evaluation. By using a variety of advanced vegetation dynamic models, we found that enhanced vegetation growth which absorbed more CO2, but also an enhancement of ecosystem respiration which released more CO2 in Europe during 2000–2018. The offsetting effect of these two processes has resulted in non-significant trend in the European net CO2 uptake. In addition, the extremely high temperature events (heatwaves) frequently occurred in Europe in recent years, which have caused vegetation damage or even death, triggered forest fires, etc., thereby severely inhibited the carbon sink capacity of the terrestrial ecosystem.

 

John

--
You received this message because you are subscribed to the Google Groups "Carbon Dioxide Removal" group.
To unsubscribe from this group and stop receiving emails from it, send an email to CarbonDioxideRemoval+unsubscribe@....
To view this discussion on the web visit https://groups.google.com/d/msgid/CarbonDioxideRemoval/CAExHVaTnamTTxV0K-7ZGxavPtva80kKsFoye32O6evjBhPUNpQ%40mail.gmail.com.

Join main@Biochar.groups.io to automatically receive all group messages.