July 2017

27.07.2017

# Media

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INGOV: Workshop Update: The politics and governance of negative emissions technology

"To that end, the INOGOV COST Action supported* a workshop on “The Politics and Governance of Negative Emissions Technologies: Between the Paris Agreement and the Anthropocene,” which took place in June at the Utrecht University School of Law in the historic center of Utrecht, The Netherlands. The objective was to bring together diverse European scholars in the social sciences to deepen the understanding of the challenges and opportunities of NETs’ research, development, and possible implementation. Twenty-nine participants from six countries made the workshop a success in achieving this goal."

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27.07.2017

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New Atlas: We could slow global warming by making brighter clouds – but should we?

"This week, two independent studies have examined the idea, one running computer simulations of a "cocktail" of techniques, while the other outlined a small-scale test to figure out how practical and safe the idea might be."

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27.07.2017

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GlobalSpec: A Geoengineering Technique Called Cloud Brightening Could Slow Global Warming

"A new University of Washington study focuses on the idea of marine cloud brightening, which is being studied by a UW group as a strategy to offset global warming. The strategy is to spray saltwater into the air to make marine clouds reflect more incoming solar rays. Small-scale tests of marine cloud brightening could help answer many scientific questions about clouds and aerosols. The goal for these geoengineering tests would follow the recommendations from U.S. National Academies of Sciences’ 2015 that said any tests of geoengineering also yields scientific benefits."

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27.07.2017

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Zeit: Drawback for the concept of hope (German)

German newspaper article on negative emissions.

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27.07.2017

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Vice News: 3 huge geoengineering projects are under way to save the planet

"It’s no longer science fiction to imagine altering the Earth’s atmosphere to try to cool the planet. In fact, several major “geoengineering” experiments are already underway. The scientists pursuing them believe that there’s already too much carbon in the atmosphere — and that to avoid catastrophic climate change, we’ll need to resort to climate-cooling technologies."

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27.07.2017

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MIT Technology Review: This Scientist Is Taking the Next Step in Geoengineering

"Harvard’s David Keith explains why it’s time to move forward with outdoor experiments and broader research programs."

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26.07.2017

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Independent: Climate scientists sucking carbon dioxide from air and dimming sun's rays with chemicals to cool planet

"Risky and expensive geo-engineering projects necessary to tackle global warming at a time when exceptional heatwaves, downpours and rising sea levels becoming more common"

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25.07.2017

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Green Career: Geoengineering options reviewed

"Scientists are exploring options in addition to carbon reduction to mitigate the warming of the planet, in particular geoengineering methods that alter the radiative balance of the planet, thereby reducing warming."

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25.07.2017

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Carnegie Science: Could “cocktail geoengineering” save the climate?

On Cao, Long; et al. (2017). "Geoengineering is a catch-all term that refers to various theoretical ideas for altering Earth’s energy balance to combat climate change. New research from an international team of atmospheric scientists published by Geophysical Research Letters investigates for the first time the possibility of using a “cocktail” of geoengineering tools to reduce changes in both temperature and precipitation caused by atmospheric greenhouse gases."

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25.07.2017

# New Publications

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Cao, Long; et al. (2017): Simultaneous stabilization of global temperature and precipitation through cocktail geoengineering

Cao, Long; Duan, Lei; Bala, Govindasamy; Caldeira, Ken (2017): Simultaneous stabilization of global temperature and precipitation through cocktail geoengineering. In Geophys. Res. Lett. 37 (D6), p. 117. DOI: 10.1002/2017GL074281.

"Here we investigate the possibility of stabilizing both global mean temperature and precipitation simultaneously by combining two geoengineering approaches: stratospheric sulfate aerosol increase (SAI) that deflects sunlight to space and cirrus cloud thinning (CCT) that enables more longwave radiation to escape to space."

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