01.12.2017

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Reuters: Scientists look to Bali volcano for clues to curb climate change

"Climate scientists are tracking an erupting volcano on the Indonesian holiday island of Bali for clues about a possible short-cut to curb global warming by injecting sun-dimming chemicals high above the Earth. "

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30.11.2017

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Vox: Bali’s fiery volcano could end up temporarily cooling the entire planet

"Scientists are also toying with the controversial idea of imitating volcanoes to keep global warming in check, a strategy known as geoengineering. This includes deliberately seeding clouds or spraying sulfuric acid into the stratosphere to offset some of humanity’s impacts on the world’s climate. "

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16.11.2017

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Indipendent: Artificial volcanoes designed to reverse global warming could risk natural disasters, scientists warn

"Geoengineering to cool the Earth’s climate by imitating volcanic eruptions is a ‘highly risky strategy’ that may increase the frequency of cyclones and droughts in some parts of the world"

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18.10.2017

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New24: Climate-disrupting volcanoes helped topple ancient Egypt: study

"The findings, the authors said, also highlight the risk today of climate engineering schemes that would combat global warming by injecting billions of tiny particles into the stratosphere - just like a volcano - to block some of the sun's rays. Even if so-called solar radiation management lowers the planet's temperature a notch or two, it could inadvertently cause major disruptions in rainfall patterns. "Ptolemaic vulnerability to volcanic eruptions offers a caution for all monsoon-dependent agriculture regions," which today include 70% of the world's population, the authors wrote."

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29.11.2016

# New Publications

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van Hemer, Mieke (2016): Speculative promise as a driver in climate engineering research. The case of Paul Crutzen’s back-of-the-envelope calculation on solar dimming with sulfate aerosols

van Hemer, Mieke (2016): Speculative promise as a driver in climate engineering research. The case of Paul Crutzen’s back-of-the-envelope calculation on solar dimming with sulfate aerosols. In Futures. DOI 10.1016/j.futures.2016.11.006.

"In this paper, I study the generative role of speculative promise in climate engineering research. My analysis operationalizes Alfred Nordmann’s call for a ‘forensics of wishing’, a variety of technology assessment which scrutinizes the politics of anticipation in technoscience. Using scientific articles and reports as primary sources I trace the uptake and contestation of bold claims made by atmospheric scientist Paul Crutzen a decade ago."

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29.08.2016

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Slate: We’ve Heated Up the Planet. Can We Cool It Back Down?

"We can’t control volcanic eruptions, of course, but scientists who advocate for the study of solar geoengineering say that we could potentially use airplanes to add diamond dust or sulfuric acid into the stratosphere, increasing the amount of sunlight reflected from Earth."

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24.05.2016

# New Publications

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Laakso, A.; et al. (2016): Radiative and climate impacts of a large volcanic eruption during stratospheric sulfur geoengineering

Laakso, A.; Kokkola, H.; Partanen, A.-I.; Niemeier, U.; Timmreck, C.; Lehtinen, K. E. J. et al. (2016): Radiative and climate impacts of a large volcanic eruption during stratospheric sulfur geoengineering. In Atmos. Chem. Phys. 16 (1), pp. 305–323. DOI 10.5194/acp-16-305-2016.

"Here we employ a global aerosol-climate model and an Earth system model to study the radiative and climate changes occurring after an erupting volcano during solar radiation management (SRM). According to our simulations the radiative impacts of the eruption and SRM are not additive and the radiative effects and climate changes occurring after the eruption depend strongly on whether SRM is continued or suspended after the eruption."

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12.10.2015

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The Market Business: Volcano Eruptions Can Change River Flows, Impact Water Availability

"Caution against geo-engineering as climate change solution The study, published in Nature Geoscience, also cautioned against so-called geo-engineering schemes proposed as a solution for cooling down an overheating planet."

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18.08.2015

# New Publications

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Laakso, A.; et al. (2015): Radiative and climate impacts of a large volcanic eruption during stratospheric sulfur geoengineering

Laakso, A.; Kokkola, H.; Partanen, A.-I.; Niemeier, U.; Timmreck, C.; Lehtinen, K. E. J. et al. (2015): Radiative and climate impacts of a large volcanic eruption during stratospheric sulfur geoengineering. In Atmos. Chem. Phys. Discuss. 15 (15), pp. 21837–21881. DOI 10.5194/acpd-15-21837-2015.

"Here we employ a global aerosol-climate model and an earth system model to study the radiative and climate impacts of an erupting volcano during solar radiation management (SRM). According to our simulations, the radiative impacts of an eruption and SRM are not additive: in the simulated case of concurrent eruption and SRM, the peak increase in global forcing is about 40 % lower compared to a corresponding eruption into a clean background atmosphere."

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11.04.2015

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the guardian: Can volcanoes tackle climate change?

"Two hundred years ago a volcanic eruption cooled the Earth. Could it help us tackle global warming today?"

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