27.04.2017

# New Publications

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Lenferna, Alex; et al. (2017): Relevant Climate Response Tests for Stratospheric Aerosol Injection. A Combined Ethical and Scientific Analysis

Lenferna, Alex; Russotto, Rick; Tan, Amanda; Gardiner, Stephen; Ackerman, Thomas (2017): Relevant Climate Response Tests for Stratospheric Aerosol Injection. A Combined Ethical and Scientific Analysis. In Earth's Future. DOI: 10.1002/2016EF000504.

"In this paper, we focus on stratospheric sulfate injection as a geoengineering scheme, and provide a combined scientific and ethical analysis of climate response tests, which are a subset of outdoor tests that would seek to impose detectable and attributable changes to climate variables on global or regional scales. We assess the current state of scientific understanding on the plausibility and scalability of climate response tests. Then we delineate a minimal baseline against which to consider whether certain climate response tests would be relevant for a deployment scenario. Our analysis shows that some climate response tests, such as those attempting to detect changes in regional climate impacts, may not be deployable in time periods relevant to realistic geoengineering scenarios. This might pose significant challenges for justifying SSI deployment overall."

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21.04.2017

# Media

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Nextbigfuture Blog: Tests for safe Geoengineering should start now

"Harvard’s Schrag argued the opposite: that the scariest version of the future may be one where geoengineering is never developed or deployed. “I don’t think people understand just what we’re up against with climate,” he said. “The most likely scenarios for climate over longer time scales are devastating to future generations, absolutely devastating.”"

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18.04.2017

# Media

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Harvard Crimson: Harvard Researchers Launch Solar Geoengineering Moonshot

"Launched this weekend, Harvard’s Solar Geoengineering Research Program will investigate the safety of geoengineering as well as its environmental and political implications. Scientists specifically look into a technique of injecting specific particles into Earth’s upper atmosphere to create a barrier that reflects more sunlight away from the atmosphere."

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12.04.2017

# Media

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[press review]: US solar geoengineering field study

Press coverage on Harvard project on testing stratospheric particle injection. (updated)


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08.04.2017

# Media

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ETC Group: Why SRM experiments are a bad idea

"Solar Radiation Management (SRM) describes a set of geoengineering techniques that aim to counter human-made climate change by artificially increasing the reflection of heat from sunlight (solar radiation) back into space. Some advocates have started using the term “solar geoengineering” – but these techniques are not related to solar power production."

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04.04.2017

# Media

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New York Times: To Curb Global Warming, Science Fiction May Become Fact

"That is where engineering the climate comes in. Last month, scholars from the physical and social sciences who are interested in climate change gathered in Washington to discuss approaches like cooling the planet by shooting aerosols into the stratosphere or whitening clouds to reflect sunlight back into space, which may prove indispensable to prevent the disastrous consequences of warming."

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31.03.2017

# Media

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BBC: Do We Need A Plan B For Climate Change?

"At a recent press conference on the new US budget questions were asked about funding for climate change initiatives. The answer was stark. “We’re not spending money on that anymore,” reporters were told"

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31.03.2017

# Media

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New Scientist: Geoengineering the sky is scary but we need to test it now

"The world's biggest trial of cooling the planet by altering the atmosphere is being launched. It is crucial that it goes ahead, says Jamais Cascio"

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24.03.2017

# Media

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MIT Technology Review: Harvard Scientists Moving Ahead on Plans for Atmospheric Geoengineering Experiments

"The climate researchers intend to launch a high-altitude balloon that would spray a small quantity of reflective particles into the stratosphere."

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24.03.2017

# Media

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the guardian: US scientists launch world's biggest solar geoengineering study

"Research programme will send aerosol injections into the earth’s upper atmosphere to study the risks and benefits of a future solar tech-fix for climate change"

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