28.01.2016

# Media

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Costa, K. M.; et al. (2016): No iron fertilization in the equatorial Pacific Ocean during the last ice age

Costa, K. M.; McManus, J. F.; Anderson, R. F.; Ren, H.; Sigman, D. M.; Winckler, G. et al. (2016): No iron fertilization in the equatorial Pacific Ocean during the last ice age. In Nature 529 (7587), pp. 519–522. DOI 10.1038/nature16453.

"Here we present meridional transects of dust (derived from the 232Th proxy), phytoplankton productivity (using opal, 231Pa/230Th and excess Ba), and the degree of nitrate consumption (using foraminifera-bound δ15N) from six cores in the central equatorial Pacific for the Holocene (0–10,000 years ago) and the LGP (17,000–27,000 years ago). We find that, although dust deposition in the central equatorial Pacific was two to three times greater in the LGP than in the Holocene, productivity was the same or lower, and the degree of nitrate consumption was the same. These biogeochemical findings suggest that the relatively greater ice-age dust fluxes were not large enough to provide substantial iron fertilization to the central equatorial Pacific."

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08.12.2015

# New Publications

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Kumar, Kanhaiya; et al. (2015): CO2 Sequestration Through Algal Biomass Production

Kumar, Kanhaiya; Mishra, Sanjiv Kumar; Choi, Gang-Guk; Yang, Ji-Won (2015): CO2 Sequestration Through Algal Biomass Production. In Debabrata Das (Ed.): Algal Biorefinery: An Integrated Approach. Cham: Springer International Publishing, pp. 35–57.

"As an aggressive move, CO2 sequestration through algal biomass produktion is an promissing option. CO2 sequestered algal biomass can be further utilized for the biofuel productions [...]"

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08.06.2015

# Projects

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Climate CoLab: ocean cooling machine powered by Thermal mass oven as explained in Energy supply

"Using large tubes sunk into the ocean 2000', with props set in them to draw the cold water up, and intermix it into the surface layer."

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01.04.2015

# Political Papers

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Sustainable Shipping Initiative (2015): Signals of Change

Sustainable Shipping Initiative (2015): Signals of Change. Looking at the potential impact of emerging signals of change on the future of sustainable shipping.

Report with one page (p. 23) on CE. "If geoengineering starts to gain mainstream acceptance, there may be the opportunity, or even expectation, for shipping industry players to invest in studies and innovative implementation of these solutions."

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27.11.2014

# Projects

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Project finding: Integrated Assessment of Geoengineering Proposals (IAGP)

Findings from IAGP project online available. "Integrating physical, engineering and social sciences to construct a framework for assessing effectiveness and side effects of geoengineering proposals."

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07.11.2014

# Media

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the guardian: Geoengineering could prevent climate effects caused by giant volcanic eruptions

Media response to Fuglestvedt, Jan S.; et al. (2014). "Shooting huge amounts of non-ozone-harming greenhouse gases into the atmosphere could counteract vast volcanic sulphur clouds that cause perpetual winters, new research suggests"

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01.08.2014

# Media

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blue & green tomorrow: Geoengineering could make climate change’s impacts worse

Follwo up to the guardian article. "A professor from Washington University, Seattle, has warned that climate engineering, or geoengineering, could have unknown consequences in decades to come and has said there needs to be a debate on the ethical issues around the practice."

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28.07.2014

# Media

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Frequency (Video): Simon Nicholson on Geoengineering

"SIS Assistant Professor Simon Nicholson discusses the promise and potential downsides of geoengineering solutions to climate change."

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05.06.2014

# Media

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IOM Today: Exxon – breaking and remaking the climate?

"An oil refinery owned by Exxon. The firm has acknowledged the existence of climate change in funding a report which concluded that geo-engineering through sulphur aerosol spraying would be a cheaper response to global warming than would phasing out fossil fuels."

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02.04.2014

# New Publications

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Robinson, J.; et al. (2014): How deep is deep enough? Ocean iron fertilization and carbon sequestration in the Southern Ocean

Robinson, J.; Popova, E. E.; Yool, A.; Srokosz, M.; Lampitt, R. S.; Blundell, J. R. (2014): How deep is deep enough? Ocean iron fertilization and carbon sequestration in the Southern Ocean. In Geophys. Res. Lett., pp. n/a. DOI 10.1002/2013GL058799.

"This study assesses the impact of deep circulation on carbon sequestered by OIF in the Southern Ocean, a high-nutrient-low-chlorophyll region known to be iron-stressed."

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