10.08.2018

# Media

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Nature: Glacier geoengineering needs lawyers too

"Proposals such as those of John Moore and colleagues (Nature 555, 303–305; 2018) for Antarctic glacier geoengineering understate the legal challenges presented by the Antarctic Treaty System (ATS). This system is crucial to Antarctic governance, but faces considerable geopolitical pressure (Nature 558, 161; 2018). It is essential that any activities affecting the Antarctic ecosystem properly engage with the ATS from the outset."

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09.08.2018

# Media

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Independent: Major plan to deal with climate change by geoengineering the Earth would not work, scientists reveal

"The Earth could not be changed to save the environment, according to a new paper exploring the possibilities of "geoengineering" the planet to protect us from the worst effects of climate change."

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09.08.2018

# Media

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The Guardian: Reflecting sun's rays would cause crops to fail, scientists warn

"Proposals to combat climate change by reflecting the sun’s rays back into space would cause widespread crop failure, cancelling out any benefits to farming from the reduction in warming, according to new research."

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08.08.2018

# New Publications

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Steffen, W.; et al. (2018): Trajectories of the Earth System in the Anthropocene. In: Proceedings of the National Academy of Sciences of the United States of America

Steffen, W.; Rockström, J.; Richardson, K.; Lenton, T. M.; Folke, C.; Liverman, D. et al. (2018): Trajectories of the Earth System in the Anthropocene. In: Proceedings of the National Academy of Sciences of the United States of America. DOI: 10.1073/pnas.1810141115.

"We explore the risk that self-reinforcing feedbacks could push the Earth System toward a planetary threshold that, if crossed, could prevent stabilization of the climate at intermediate temperature rises and cause continued warming on a “Hothouse Earth” pathway even as human emissions are reduced. Crossing the threshold would lead to a much higher global average temperature than any interglacial in the past 1.2 million years and to sea levels significantly higher than at any time in the Holocene. We examine the evidence that such a threshold might exist and where it might be. If the threshold is crossed, the resulting trajectory would likely cause serious disruptions to ecosystems, society, and economies."

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06.08.2018

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Techradar: Could geoengineering be used to manage our climate?

"This is geoengineering, a range of complex and controversial techniques that are set to one day be used to tinker with global weather systems."

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04.08.2018

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The Guardian: Pollution is slowing the melting of Arctic sea ice, for now

"The authors concluded that the combined cooling effect from human aerosols was detected in all three datasets of ice. That means, it didn’t matter whose measurements you used – the effect of aerosol cooling was present."

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03.08.2018

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The Economist: The world is losing the war against climate change

"The world is not short of ideas to realise the Paris goal. Around 70 countries or regions, responsible for one-fifth of all emissions, now price carbon. Technologists beaver away on sturdier grids, zero-carbon steel, even carbon-negative cement, whose production absorbs more CO{-2} than it releases. All these efforts and more—including research into “solar geoengineering” to reflect sunlight back into space—should be redoubled."

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01.08.2018

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The Conversation: Geoengineering the Great Barrier Reef needs strong rules

"A recent conference showcased new possibilities for enhancing Reef resilience, including boosting coral abundance and geoengineering techniques that would manipulate local conditions to reduce ocean temperatures."

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01.08.2018

# Media

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The Atlantic: A Radical New Scheme to Prevent Catastrophic Sea-Level Rise

"Geo-engineering, its most enthusiastic advocates will tell you, isn’t only possible. It’s already happening. We know, they say, because we’re doing it—we just call it global warming."

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31.07.2018

# New Publications

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Brent, Kerryn (2018): Solar Radiation Management Geoengineering and Strict Liability for Ultrahazardous Activities

Brent, Kerryn (2018): Solar Radiation Management Geoengineering and Strict Liability for Ultrahazardous Activities. In: Neil Craik, Cameron S. G. Jefferies, Sara L. Seck und Tim Stephens (Hg.): Global Environmental Change and Innovation in International Law: Cambridge University Press, S. 161–179.

"Proposals to develop solar radiation management (SRM) geoengineering call into question the capacity of international law to govern innovative new technologies. Geoengineering is ‘the deliberate large-scale intervention in the Earth’s climate system, in order to moderate global warming’.1 Solar radiation management proposals are intended to offset global temperatures rises resulting from climate change by reflecting a small percentage of incoming solar radiation (sunlight).2 The most prominent proposal, stratospheric aerosol injection (SAI), is to deposit aerosols into the stratosphere to reflect or scatter light away from the Earth, mimicking the cooling effect produced by large volcanic eruptions.3 Stratospheric aerosol injection is promising in that it could rapidly reduce global temperatures for a fraction of the cost of conventional mitigation strategies.4 However, SAI deployment is likely to have detrimental transboundary and global environmental side effects.5 It is therefore important that SAI is governed at an international level, but at present there are no international agreements that specifically address SAI research or deployment."

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