11.05.2018

# Media

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Chicago Tonight: Harvard Scientist: Climate Change May Be Worse Than We Think

"Adding to his grim forecast, Schrag says reversing the trend will be neither easy nor quick. For one thing, more than half of the CO2 currently affecting climate change will remain in our atmosphere 1,000 years from now. “A silver-bullet solution is not around the corner. It will require innovative investments sustained for at least the next century,” he says."

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11.05.2018

# New Publications

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Richter, Jadwiga H.; et al. (2018): Stratospheric response in the first geoengineering simulation meeting multiple surface climate objectives

Richter, Jadwiga H.; Tilmes, Simone; Glanville, Anne A.; Kravitz, Ben; MacMartin, Douglas G.; Mills, Michael J. et al. (2018): Stratospheric response in the first geoengineering simulation meeting multiple surface climate objectives. In J. Geophys. Res. Atmos. DOI: 10.1029/2018JD028285.

"We describe here changes in stratospheric dynamics and chemistry in a first century‐long sulfate aerosol geoengineering simulation in which the mean surface temperature and the inter‐hemispheric and equator‐to‐pole surface temperature gradients were kept near their 2020 levels despite the RCP8.5 emission scenario. Simulations were carried out with the Community Earth System Model, version 1 with the Whole Atmosphere Community Climate Model as its atmospheric component (CESM1 (WACCM)) coupled to a feedback algorithm controlling the magnitude of sulfur dioxide (SO2) injections at four injection latitudes."

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11.05.2018

# Media

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Scientific American: A Different Kind of Clean Energy

"The world needs carbon-capture technology now more than ever in the fight against climate change"

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11.05.2018

# Media

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CBC: Geoengineering could help fight climate change, but topic politically taboo, says scientist

"New methods to regulate the earth's temperature don't displace the need to lower CO2 emissions"

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11.05.2018

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Phys.org: Climate geoengineering research should include developing countries

"The impact of this kind of initiative on global ecosystems remains highly uncertain. According to a commentary published in the journal Nature, the only certainty is that developing countries will be the most affected both by climate change and by any action taken to try to slow or stop the rise in global temperatures."

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11.05.2018

# Media

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strategy+business: Manufacturing Goes Carbon Negative

"A growing number of innovative companies is capturing CO2 and using it to create materials and products for human consumption."

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11.05.2018

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Carbon Brief: Explainer: Six ideas to limit global warming with solar geoengineering

"Scientists agree that cutting global greenhouse emissions as soon as possible will be key to tackling global warming. But, with global emissions still on the rise, some researchers are now calling for more research into measures that could be taken alongside emissions cuts, including – controversially – the use of “solar geoengineering” technologies."

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11.05.2018

# Media

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Vox: What genuine, no-bullshit ambition on climate change would look like

"New scenarios show how to hit the most stringent targets, with no loopholes."

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09.05.2018

# New Publications

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Muthyala, Rohi; et al. (2018): Regional Scale Analysis of Climate Extremes in an SRM Geoengineering Simulation, Part 2. Temperature Extremes

Muthyala, Rohi; Bala, Govindasamy; Nalam, Aditya (2018): Regional Scale Analysis of Climate Extremes in an SRM Geoengineering Simulation, Part 2. Temperature Extremes. In Current Science 114 (05), p. 1036. DOI: 10.18520/cs/v114/i05/1036-1045.

"In this study, we examine the statistics of temperature extremes in a model simulation of solar radiation management (SRM) geoengineering. We consider both intensity and frequency-based extreme indices for temperature. [...] Large increase (~10–20 K) in the lower tails (0.1 percentile) of Tmin and Tmax in the northern hemisphere extra-tropics that are simulated under doubling of CO2 are reduced in geoengineering simulation, but significant increase (~4–7 K) persist over high-latitude land regions. Frequency of temperature extremes is largely offset over land regions in geoengineered climate. "

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09.05.2018

# New Publications

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Muthyala, Rohi; et al. (2018): Regional Scale Analysis of Climate Extremes in an SRM Geoengineering Simulation, Part 1. Precipitation Extremes

Muthyala, Rohi; Bala, Govindasamy; Nalam, Aditya (2018): Regional Scale Analysis of Climate Extremes in an SRM Geoengineering Simulation, Part 1. Precipitation Extremes. In Current Science 114 (05), p. 1024. DOI: 10.18520/cs/v114/i05/1024-1035.

"In this study, we examine the statistics of precipitation extreme events in a model simulation of solar radiation management (SRM) geoengineering. We consider both intensity and frequency-based extreme indices for precipitation. [...] In the geoengineered climate, though the global mean of the intensity of extreme precipitation events is slightly less than in control climate, substantial changes remain on regional scales. We do not find significant changes in the frequency of precipitation extremes in geoengineering simulation compared to control simulation on global and regional scales."

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