https://www.researchgate.net/publication/370531906_Impact_of_Regional_Marine_Cloud_Brightening_Interventions_on_Climate_Tipping_Points
- *May 2023*
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DOI:10.22541/essoar.168319813.32335439/v1
<http://dx.doi.org/10.22541/essoar.168319813.32335439/v1>
Authors:
Haruki Hirasawa
<https://www.researchgate.net/scientific-contributions/Haruki-Hirasawa-2181938909>
, Dipti Hingmire <https://www.researchgate.net/profile/Dipti-Hingmire>, Hansi
Alice Singh
<https://www.researchgate.net/scientific-contributions/Hansi-A-Singh-2194636256>
, P. J. Rasch <https://www.researchgate.net/profile/P-Rasch>, Peetak Mitra
<https://www.researchgate.net/profile/Peetak-Mitra>
Abstract
It has been proposed that increasing greenhouse gas (GHG)-driven climate
tipping point risks may prompt consideration of Solar Radiation
Modification (SRM) climate intervention to reduce those risks. Here, we
study marine cloud brightening (MCB) SRM interventions in three subtropical
oceanic regions using the Community Earth System Model 2 (CESM2)
experiments. We assess the response of tipping point-related metrics to
estimate the extent to which such interventions could reduce tipping point
risk. Both the pattern and magnitude of the MCB cooling depend strongly on
location of the MCB intervention. We find the MCB cooling effect reduces
tipping point risk overall; however, the distinct pattern effects of MCB
versus GHG means it is an imperfect remedy. Indeed, if MCB is applied in
certain oceanic regions, it may exacerbate some tipping point risks. It is
therefore crucial to carefully assess the potential remote teleconnected
response to MCB interventions to reduce unintended climate impacts.
*Source: ResearchGate*
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