31.08.2020

# Media

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ABC News: Saviour or scientific hubris? Geoengineering the planet to counter climate change

"By 2010 a large number of "geoengineering" experiments were under consideration — but now major experimentation appears to have stalled. The reasons why reflect the difficulties in trying to deliberately manipulate a system as complex and fragile as the Earth's environment. They may also speak to the limits of political will, the public's fear of human meddling, and the problematic line between innovation and scientific hubris."

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14.07.2020

# Political Papers

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Florin, Marie-Valentine; et al. (2020): lnternational governance issues on climate engineering Information for policymakers

Florin, Marie-Valentine; Rouse, Paul; Hubert, Anna-Maria; Honegger, Matthias; Reynolds, Jesse (2020): lnternational governance issues on climate engineering Information for policymakers. EPFL International Risk Governance Center (IRGC). Lausanne.

"Driven by questions and needs from the international policymaking community to better understand the potential benefits as well as opportunities, risks, uncertainties and other challenges of CDR and SRM, at both technical and governance levels, this report reviews and compares technologies and their potential contributions, costs, risks, uncertainties, before surveying the current legal and institutional landscape of governance regarding climate engineering."

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14.07.2020

# Media

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EPFL: A call for better governance of climate engineering technologies

"In a study for the Swiss Federal Office for the Environment EPFL’s International Risk Governance Center (IRGC) has brought together a group of global experts to point the way forward for international policymakers grappling with the risks and benefits posed by Carbon Dioxide Removal and Solar Radiation Modification."

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30.09.2018

# Media

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EurekAlert: Now is the time to answer questions about climate engineering disease impacts

"Radical solutions to climate change might save lives, but a commentary in the October 2018 issue of the journal Nature Climate Change calls for caution because geoengineering still lacks a "clean bill of health.""

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30.09.2018

# New Publications

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Carlson, C.; et al. (2018): Climate engineering needs a clean bill of health

Carlson, C.; Trisos, C. (2018): Climate engineering needs a clean bill of health. In: Nature Climate change 8 (10), S. 843–845. DOI: 10.1038/s41558-018-0294-7.

"Climate change will almost certainly cause millions of deaths. Climate engineering might prevent this, but benefits — and risks — remain mostly unevaluated. Now is the time to bring planetary health research into climate engineering conversations."

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21.07.2017

# New Publications

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Moreno-Cruz, Juan B.; et al. (2017): An Economic Anatomy of Optimal Climate Policy

Moreno-Cruz, Juan B.; Wagner, Gernot; Keith, David W. (2017): An Economic Anatomy of Optimal Climate Policy. (HKS Faculty Research Working Paper Series, RWP17-028).

"This paper introduces geoengineering into an optimal control model of climate change economics. Together with mitigation and adaptation, carbon and solar geoengineering span the universe of possible climate policies. We show in the context of our model that: (i) a carbon tax is the optimal response to the unpriced carbon externality only if it equals the marginal cost of carbon geoengineering; (ii) the introduction of solar geoengineering leads to higher emissions yet lower temperatures, and, thus, increased welfare; and (iii) solar geoengineering, in effect, is a public goods version of adaptation that also lowers temperatures."

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04.05.2017

# New Publications

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Boysen, Lena R.; et al. (2017): Trade-offs for food production, nature conservation and climate limit the terrestrial carbon dioxide removal potential

Boysen, Lena R.; Lucht, Wolfgang; Gerten, Dieter (2017): Trade-offs for food production, nature conservation and climate limit the terrestrial carbon dioxide removal potential. In Glob Chang Biol. DOI: 10.1111/gcb.13745.

"We integrate these factors in one spatially explicit biogeochemical simulation framework to explore the tCDR opportunity space on land available after these constraints are taken into account, starting either in 2020 or 2050, and lasting until 2100. We find that assumed future needs for nature protection and food production strongly limit tCDR potentials. BPs on abandoned crop and pasture areas (~1300 Mha in scenarios of either 8.0 billion people and yield gap reductions of 25% until 2020 or 9.5 billion people and yield gap reductions of 50% until 2050) could, theoretically, sequester ~100 GtC in land carbon stocks and biomass harvest by 2100."

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16.12.2015

# Media

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FCEA Blog: Cost-Benefit Analysis of Solar Geoengineering

By Juan Moreno-Cruz, and Soheil Shayegh. "Solar geoengineering (SGE) offers the possibility of offsetting greenhouse-gas-induced temperature increases by reducing incoming solar radiation. Its key advantages are 1) it is fast. Unlike emissions reductions, which can take decades to bear results, SGE can reduce global temperatures nearly instantaneously. 2) it is cheap. SGE can potentially reduce temperatures at costs that are several orders of magnitude lower compared to abatement – this has been called “the incredible economics of geoengineering”."

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22.08.2014

# Political Papers

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Schütte, Georg (2014): Opening speech

Schütte, Georg (2014): Opening speech. Climate Engineering Conference 2014 (CEC14). Berlin, 8/18/2014.

Opening speech by the state secretary of the German Federal Ministry of Education and Research at the CE conference in Berlin.

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21.08.2014

# Media

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Motherboard: 'It's Only a Matter of Time': Scientists Consider Geoengineering a Cooler Planet

"Yet 300 scientists, policymakers, legal experts, and NGOs have traveled to Berlin precisely to discuss it, in its biggest public forum yet."

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