25.11.2020

# Calls & events

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Call for Applications: Harvard Fellowship Program: 2021 SGRP Fellows

Deadline: 29. January 2021

"Harvard’s Solar Geoengineering Research Program (SGRP) invites applications for post-doctoral and pre-doctoral fellowships, under the direct supervision of Harvard faculty."

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25.11.2020

# Media

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Phys.org: Dimming Sun's rays could ease climate impacts in Africa

"Dialling down the Sun's heat a notch by injecting billions of shiny sulphur dioxide particles into the stratosphere could curtail devastating drought across parts of Africa, new peer-reviewed research has reported."

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23.11.2020

# New Publications

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Lockley, Andrew (2020): State commissioning of Solar Radiation Management geoengineering

Lockley, Andrew (2020): State commissioning of Solar Radiation Management geoengineering. In Ethics, Policy & Environment. DOI: 10.1080/21550085.2020.1848176.

"Notwithstanding concerns about privatisation, we assume state commissioning of SRM - proposing and analysing plausible governance, by adapting extant proposals. We consider two regulatory functions: legal/corporate; and scientific/technical. We briefly discuss mandatory, emissions-linked SRM funding."

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23.11.2020

# Media

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Forum for Climate Engineering Assessment: A New Horizon for Governance?

"But in the excitement of finally having the most progressive presidential platform yet seen for climate change in hopes of limiting temperature rise and achieving net-zero emissions, there remains an important question in this arena: will this administration grapple with solar geoengineering?"

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19.11.2020

# New Publications

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Odoulami, Romaric C.; et al. (2020): Stratospheric Aerosol Geoengineering could lower future risk of ‘Day Zero’ level droughts in Cape Town

Odoulami, Romaric C.; New, Mark; Wolski, Piotr; Guillemet, Gregory; Pinto, Izidine; Lennard, Christopher et al. (2020): Stratospheric Aerosol Geoengineering could lower future risk of ‘Day Zero’ level droughts in Cape Town. In Environ. Res. Lett. 15 (12), p. 124007. DOI: 10.1088/1748-9326/abbf13.

"Here, we assess the potential for geoengineering using stratospheric aerosols injection (SAI) to offset the risk of 'Day Zero' level droughts in a high emission future climate using climate model simulations from the Stratospheric Aerosol Geoengineering Large Ensemble Project. Our findings suggest that keeping the global mean temperature at 2020 levels through SAI would offset the projected end century risk of 'Day Zero' level droughts by approximately 90%, keeping the risk of such droughts similar to today's level."

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18.11.2020

# New Publications

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Schneider, Tapio; et al. (2020): Solar geoengineering may not prevent strong warming from direct effects of CO2 on stratocumulus cloud cover

Schneider, Tapio; Kaul, Colleen M.; Pressel, Kyle G. (2020): Solar geoengineering may not prevent strong warming from direct effects of CO2 on stratocumulus cloud cover. In Proceedings of the National Academy of Sciences of the United States of America. DOI: 10.1073/pnas.2003730117.

"Solar geoengineering that manipulates the amount of sunlight Earth absorbs is increasingly discussed as an option to counter global warming. However, we demonstrate that solar geoengineering is not a fail-safe option to prevent global warming because it does not mitigate risks to the climate system that arise from direct effects of greenhouse gases on cloud cover"

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17.11.2020

# New Publications

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Banerjee, Antara; et al. (2020): Robust winter warming over Eurasia under stratospheric sulfate geoengineering – the role of stratospheric dynamics

Banerjee, Antara; Butler, Amy H.; Polvani, Lorenzo M.; Robock, Alan; Simpson, Isla R.; Sun, Lantao (2020): Robust winter warming over Eurasia under stratospheric sulfate geoengineering – the role of stratospheric dynamics. In Atmos. Chem. Phys. Discuss. (in review). DOI: 10.5194/acp-2020-965.

"It has been suggested that increased stratospheric sulfate aerosol loadings following large, low latitude volcanic eruptions can lead to wintertime warming over Eurasia through dynamical stratosphere-troposphere coupling. We here investigate the proposed connection in the context of hypothetical future stratospheric sulfate geoengineering in the Geoengineering Large Ensemble simulations."

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13.11.2020

# New Publications

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Reynolds, Jesse L. (2020): Is solar geoengineering ungovernable? A critical assessment of governance challenges identified by the Intergovernmental Panel on Climate Change

Reynolds, Jesse L. (2020): Is solar geoengineering ungovernable? A critical assessment of governance challenges identified by the Intergovernmental Panel on Climate Change. In Wiley Interdisciplinary Reviews: Climate Change. DOI: 10.1002/wcc.690.

"I find seven such challenges identified in the IPCC reports: that SRM could lessen mitigation; that its termination would cause severe climatic impacts; that researching SRM would create a “slippery slope” to its inevitable and unwanted use; that decisions to use it could be contrary to democratic norms; that the public may not accept SRM; that it could be unethical; and that decisions to use SRM could be unilateral. After assessing the extent to which these challenges are supported by existing evidence, scholarly literature, and robust logic, I conclude that, for six of the seven, the IPCC's claims variously are speculative, fail to consider both advantages and disadvantages, implicitly make unreasonable negative assumptions, are contrary to existing evidence, and/or are meaninglessly vague."

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10.11.2020

# New Publications

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Kessler, Juliana (2019): Novel non-state sources of de facto governance in the solar geoengineering governance landscape: The case of SRMGI and C2G

Kessler, Juliana (2019): Novel non-state sources of de facto governance in the solar geoengineering governance landscape: The case of SRMGI and C2G. MSc Thesis Environmental Policy Group. Wageningen University & Research, Wageningen.

"Calls for anticipatory governance have been on the rise in discussions on solar geoengineering. Two influential governance initiatives, the Solar Radiation Management Governance Initiative (SRMGI) and the Carnegie Climate Governance Initiative (C2G), intervene in and steer the solar geoengineering governance landscape, thus de facto governing it. This research analyses the governance initiatives’ interventions and governance effects as it is argued that their steering has major implications, also for how (future) governance options are envisioned and constructed."

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06.11.2020

# Projects

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Project: GENIE

"Three lead researchers will integrate insights from social science, engineering and physical science disciplines to provide a comprehensive view of GGR and SRM, and how they can help with the transition to climate neutrality in Europe and the world."

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