https://essopenarchive.org/doi/full/10.22541/essoar.173482381.11257447
*Authors*
Kelsey E Roberts, Cheryl Shannon Harrison, Tyler Weaver Rohr, Morgan Reed
Raven, Michael Steven Diamond, Daniele Visioni, Ryan Heneghan, Daniele
Bianchi, Kelly Ortega-Cisneros, Monica Ainhorn Morrison, Vanessa van
Heerden, Nicola Wiseman, Gouri Anil, Zachary J Cannizzo, Marta Coll, Joshua
Coupe, Ryan Max Freedman, Ben Kravitz, Kristen Marie Krumhardt, Lester
Kwiatkowski, Nicole Suzanne Lovenduski, Jessica Y. Luo, Holly C Olivarez,
Colleen M Petrik, Alan Robock, Jeroen Gerhard Steenbeek
*21 December 2024*
*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 below crucial thresholds
are falling short, and all feasible future climate projections, including
those that represent ideal emissions reductions, exceed the Paris
Agreement’s aspirational <1.5{degree sign}C warming target, at least
temporarily. As such, there are a number of proposed climate interventions
that aim to deliberately manipulate the environment at large scales to
counteract anthropogenic global warming. Yet, there is a high level of
uncertainty in how marine ecosystems will respond to these interventions
directly as well as how these interventions may impact marine ecosystems’
responses to climate change. Due to the key role the ocean plays in
regulating Earth’s climate and ensuring global food security, understanding
the effects that these interventions may have on marine ecosystems is
crucial. This review provides an overview of proposed intervention
methodologies for solar radiation modification and marine carbon dioxide
removal 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 substantially
alter marine food systems, biodiversity and ecosystem function. Impact
assessments are thus crucial to quantify trade-offs between plausible
intervention scenarios and to identify and discontinue scaling efforts or
commercial implementation for those with unacceptable risks.
*Source: ESS OPEN ARCHIVE*
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