Felix Schaumann
@felixschaumann.bsky.social
Interested in climate change and all the science around it - PhD candidate in climate economics at ETH Zürich. Mainly working with IAMs.
also @felixschaumann@mas.to, @felixschaumann@twitter
also @felixschaumann@mas.to, @felixschaumann@twitter
[8/11]
The SCC is raised by about 1% because of the AMOC carbon feedback (right panel).
This is of similar magnitude, but of opposite sign, to the previous economic impact estimates of AMOC weakening (left panel):
The SCC is raised by about 1% because of the AMOC carbon feedback (right panel).
This is of similar magnitude, but of opposite sign, to the previous economic impact estimates of AMOC weakening (left panel):
February 25, 2025 at 8:48 AM
[8/11]
The SCC is raised by about 1% because of the AMOC carbon feedback (right panel).
This is of similar magnitude, but of opposite sign, to the previous economic impact estimates of AMOC weakening (left panel):
The SCC is raised by about 1% because of the AMOC carbon feedback (right panel).
This is of similar magnitude, but of opposite sign, to the previous economic impact estimates of AMOC weakening (left panel):
[6/11]
But the cumulative effect for this century is - depending on the projection of AMOC strength - between 4 and 12 PgC.
For context: Every year we emit around 10 PgC, so by 2100, AMOC weakening could reduce ocean storage by up to a full year of current emissions to the atmosphere.
But the cumulative effect for this century is - depending on the projection of AMOC strength - between 4 and 12 PgC.
For context: Every year we emit around 10 PgC, so by 2100, AMOC weakening could reduce ocean storage by up to a full year of current emissions to the atmosphere.
February 25, 2025 at 8:46 AM
[6/11]
But the cumulative effect for this century is - depending on the projection of AMOC strength - between 4 and 12 PgC.
For context: Every year we emit around 10 PgC, so by 2100, AMOC weakening could reduce ocean storage by up to a full year of current emissions to the atmosphere.
But the cumulative effect for this century is - depending on the projection of AMOC strength - between 4 and 12 PgC.
For context: Every year we emit around 10 PgC, so by 2100, AMOC weakening could reduce ocean storage by up to a full year of current emissions to the atmosphere.
[5/11] What do we find? Carbon cycle impacts
We find that, in a year with a 1 Sv weaker AMOC, 0.023 PgC less will flow into the ocean. That doesn't sound like much, maybe 0.2% of current anthropogenic CO2 emissions.
We find that, in a year with a 1 Sv weaker AMOC, 0.023 PgC less will flow into the ocean. That doesn't sound like much, maybe 0.2% of current anthropogenic CO2 emissions.
February 25, 2025 at 8:43 AM
[5/11] What do we find? Carbon cycle impacts
We find that, in a year with a 1 Sv weaker AMOC, 0.023 PgC less will flow into the ocean. That doesn't sound like much, maybe 0.2% of current anthropogenic CO2 emissions.
We find that, in a year with a 1 Sv weaker AMOC, 0.023 PgC less will flow into the ocean. That doesn't sound like much, maybe 0.2% of current anthropogenic CO2 emissions.
[4/11] How do we do it?
Our methods in a cartoon:
a) freshwater hosing in a biogeochemically-only coupled ESM
b) yearly carbon flux changes as a function of yearly AMOC strength
c) cumulative carbon flux reductions in the 21st century following CMIP6 AMOC projections
d) changes in SCC estimates
Our methods in a cartoon:
a) freshwater hosing in a biogeochemically-only coupled ESM
b) yearly carbon flux changes as a function of yearly AMOC strength
c) cumulative carbon flux reductions in the 21st century following CMIP6 AMOC projections
d) changes in SCC estimates
February 25, 2025 at 8:40 AM
[4/11] How do we do it?
Our methods in a cartoon:
a) freshwater hosing in a biogeochemically-only coupled ESM
b) yearly carbon flux changes as a function of yearly AMOC strength
c) cumulative carbon flux reductions in the 21st century following CMIP6 AMOC projections
d) changes in SCC estimates
Our methods in a cartoon:
a) freshwater hosing in a biogeochemically-only coupled ESM
b) yearly carbon flux changes as a function of yearly AMOC strength
c) cumulative carbon flux reductions in the 21st century following CMIP6 AMOC projections
d) changes in SCC estimates
Interested in economic effects of AMOC weakening? Join us tomorrow afternoon in #EGU24 session CL3.2.3 to hear about how the AMOC affects the carbon cycle and through that the social cost of carbon!
Also if you just want to hang out and talk climate economics, anytime! :)
Also if you just want to hang out and talk climate economics, anytime! :)
April 14, 2024 at 9:43 PM
Interested in economic effects of AMOC weakening? Join us tomorrow afternoon in #EGU24 session CL3.2.3 to hear about how the AMOC affects the carbon cycle and through that the social cost of carbon!
Also if you just want to hang out and talk climate economics, anytime! :)
Also if you just want to hang out and talk climate economics, anytime! :)
Stoked to be at my first AGU next week! Check out my talk on Thursday on economic assessment of AMOC changes, and let me know if you wanna grab a coffee and talk science ☕🤓 #AGU23
December 11, 2023 at 5:40 AM
Stoked to be at my first AGU next week! Check out my talk on Thursday on economic assessment of AMOC changes, and let me know if you wanna grab a coffee and talk science ☕🤓 #AGU23