The content of this huge pack of paper makes to me an impression of
premature and superficiality. I have not found any mentions of the
influences of SRM on the oxidation capacity of the atmospheric chemistry
or of the cloud brightening effect on the cloud's internal and external
oxidation chemistry. Both effects are of essential influence on the
climate temperature. Additional atmospheric chemistry has substantial
influence on the extend of the temperature rise induced by the
termination shock if SAI comes to an unplanned sudden stop.
Franz
Am 26.11.2025 um 12:29 schrieb Geoengineering News:
https://essopenarchive.org/doi/full/10.22541/essoar.176401886.60047293/v1
*Authors*: Kelsey E Roberts, Tyler Rohr, Morgan R Raven, Michael S
Diamond,, Daniele Visioni, Ben Kravitz, Ryan Heneghan, Colleen M
Petrik, Daniele Bianchi, Kelly Ortega- Cisneros, Monica A Morrison,
Vanessa Van Heerden, Nicola A Wiseman, Anil Gouri, Zachary J Cannizzo,
Marta Coll, Joshua Coupe, Ryan Freedman, Kristen Krumhardt, Lester
Kwiatkowski, Nicole S Lovenduski, Jessica Y Luo, Holly C Olivarez,
Alan Robock, Jeroen Steenbeek, Cheryl S Harrison
*24 November 2025*
*Abstract*
Rising global temperatures pose significant risks to marine
ecosystems, biodiversity and fisheries. Recent comprehensive
assessments suggest that large-scale mitigation efforts to limit
warming are falling short, and all feasible future climate
projections, including those that represent optimistic emissions
reductions, exceed the Paris Agreement’s 1.5°C or 2º warming targets
during this century. While avoiding further CO2 emissions remains the
most effective way to prevent environmental destabilization, interest
is growing in climate interventions deliberate, large-scale
manipulations of the environment aimed at reducing global warming.
These include carbon dioxide removal (CDR) to reduce atmospheric CO2
concentrations over time, and solar radiation modification (SRM),
which reflects sunlight to lower surface temperatures but does not
address root CO2 causes. The effects of these interventions on marine
ecosystems, both direct and in combination with ongoing climate
change, remain highly uncertain. Given the ocean’s central role in
regulating Earth’s climate and supporting global food security,
understanding these potential effects is crucial. This review provides
an overview of proposed intervention methodologies for marine CDR and
SRM and outlines the potential trade-offs and knowledge gaps
associated with their impacts on marine ecosystems. Climate
interventions have the potential to reduce warming-driven impacts, but
could also alter marine food systems, biodiversity and ecosystem
function. Effects will vary by pathway, scale, and regional context.
Pathway-specific impact assessments are thus crucial to quantify
trade-offs between plausible intervention scenarios as well as to
identify their expected impacts on marine ecosystems in order to
prioritize scaling efforts for low-risk pathways and avoid high-risk
scenarios.
*Source: ESS Open Archive *
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