Reviewer 2 quibbles with actual experts in Solar Radiation Modification and Carbon Dioxide Removal, before rejecting their work on spurious, spiteful and capricious grounds. You'd expect nothing less from R2.
SRM treaties - Lehmann
1:24:50Why sign SRM treaties? What makes them stable and useful? Do they need to be stated, or are norms enough? Niklas Lehmann tries to convince a skeptical @geoengineering1 of the usefulness of game theory for modelling key questions in international relations. Paper: Exploring the stability of solar geoengineering agreements https://econpapers.repec.org/paper/arxpapers/2210.09145.htm - Niklas V. Lehmann, October 2022
Adding CDR to GCAM IAM - Morrow
1:08:07David Morrow returns! He discusses his unconventional transition from philosophy to integrated assessment modelling. @geoengineering1 gets schooled on how the GCAM model was modified to incorporate different CDR technologies, with varying levels of realism. Paper: "GCAM-CDR v1.0: enhancing the representation of carbon dioxide removal technologies and policies in an integrated assessment model" https://gmd.copernicus.org/articles/16/1105/2023/
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Foresting the deserts - Caldera
1:06:18Is it practical and sensible to turn deserts into forests, using desalination & irrigation? Upeksha Caldera discusses her new paper with @geoengineering1. Paper "Afforesting arid land with renewable electricity and desalination to mitigate climate change" (https://www.nature.com/articles/s41893-022-01056-7).
Does MCB actually work? Mahfouz
1:10:14Naser Mahfouz explains some big problems with MCB to @geoengineering1. Can we fill in the knowledge gaps, before it's too late to use MCB? Paper: "The Radiative and Cloud Responses to Sea Salt Aerosol Engineering in GFDL Models" (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022GL102340)
Slippery slope meets precautionary principle - Andow
1:35:41How can we merge the concepts of slippery slopes and the precautionary principle? James Andow explains how precautionary evaluation of risks can help us evaluate both the risks of ending up on a slippery slope to deployment, and the risks resulting from deployment. James argues that we need to concern ourselves with risks, not just inevitabilities, when considering slippery slopes. For additional reading discussed, see books "Innate" and "the WEIRDest people in the world". Paper: "Slippery Slope Arguments as Precautionary Arguments: A New Way of Understanding the Concern about Geoengineering Research" (https://www.ingentaconnect.com/content/whp/ev/pre-prints/content-whp_ev_3729)
Zero pressure space sunshades - Hein
1:21:32Andreas Hein entertains @geoengineering1 with more barmy space-based geoengineering nonsense. Expect moon dust, rail guns, space junk, cube sats and all sorts of other semi-relevant distractions. Paper: Transparent occulters: A nearly zero-radiation pressure sunshade to support climate change mitigation https://doi.org/10.1016/j.actaastro.2022.12.006
Iron salt aerosols - Fiekowsky
1:39:24Peter Fiekowsky and @geoengineering1 discuss Iron Salt Aerosols. Do they work (in 14 different ways)? How can we know? Is Peter's new voluntary regulation body bona fide, or hopelessly compromised? Reviewer 2 asks all the important questions, but doesn't necessarily get definitive answers.
Counting trees - Liang
1:17:30What counts as a tree, and how do you count trees? What do you do when you're surprised by a grizzly bear? How do you get data from despots? Will AI replace humans, when it comes to analysing ecological data? Do ecologists hibernate in winter? Jingjing Liang from Purdue answers all these questions, and more.
Heavy metal from weathering - Dupla
1:16:50Xavier Dupla discusses heavy metal contamination of soil and water, following enhanced weathering soil treatment. How much is too much? And what can we have to to clean up toxic residues? Citation: Dupla, X., Möller, B., Baveye, P.C. and Grand, S. (2023), Potential accumulation of toxic trace elements in soils during enhanced rock weathering. Eur J Soil Sci. Accepted Author Manuscript e13343. https://doi.org/10.1111/ejss.13343