06.03.2017

# New Publications

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Harrison, Daniel P. (2017): Global negative emissions capacity of ocean macronutrient fertilization

Harrison, Daniel P. (2017): Global negative emissions capacity of ocean macronutrient fertilization. In Environ. Res. Lett. 12 (3), p. 35001. DOI: 10.1088/1748-9326/aa5ef5.

"Utilizing global datasets of oceanographic field measurements, and output from a high resolution global circulation model, the current study provides the first comprehensive assessment of the global potential for carbon sequestration from ocean macronutrient fertilization (OMF). Sufficient excess phosphate exists outside the iron limited surface ocean to support once-off sequestration of up to 3.6 Pg C by fertilization with nitrogen. Ongoing maximum capacity of nitrogen only fertilization is estimated at 0.7 ± 0.4 Pg C yr−1. "

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05.03.2017

# Media

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Space.com: 'Earth in Human Hands': Q&A with Astrobiologist David Grinspoon

"I think that an advanced planetary civilization will modify their own planets to be more stable, to prevent asteroid impacts and dangerous climate fluctuations. I think we can look for engineered planets. I think that if we're around in 10 or 20,000 or 100,000 years, we will be engineering Earth. I think that when society gets planet-changing technology, it will either not last long because it can't handle that, or it will become able to manage themselves and their planet. Truly advanced civilizations, their planets will potentially be recognizable as planets that have been altered purposefully. We could start looking for technosignatures."

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05.03.2017

# New Publications

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Minx, Jan C.; et al. (2017): Fast growing research on negative emissions

Minx, Jan C.; Lamb, William F.; Callaghan, Max W.; Bornmann, Lutz; Fuss, Sabine (2017): Fast growing research on negative emissions. In Environ. Res. Lett. 12 (3), p. 35007. DOI: 10.1088/1748-9326/aa5ee5

"In this paper we use scientometric methods and topic modelling to identify and characterize the available evidence on NETs as recorded in the Web of Science. We find that the development of the literature on NETs has started later than for climate change as a whole, but proceeds more quickly by now. A total number of about 2900 studies have accumulated between 1991 and 2016 with almost 500 new publications in 2016."

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05.03.2017

# New Publications

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Ito, Akihiko (2017): Solar radiation management and ecosystem functional responses

Ito, Akihiko (2017): Solar radiation management and ecosystem functional responses. In Climatic Change 10, p. 84018. DOI: 10.1007/s10584-017-1930-3.

"In this study, I evaluate the impacts of SRM deployment on terrestrial ecosystem functions using a process-based ecosystem model (the Vegetation Integrative Simulator for Trace gases, VISIT) driven by the climate projections by multiple climate models. In the SRM-oriented climate projections, massive injection of sulphate aerosols into the stratosphere lead to increased scattering of solar radiation and delayed anthropogenic climate warming. The VISIT simulations show that canopy light absorption and gross primary production are enhanced in subtropics in spite of the slight decrease of total incident solar radiation."

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05.03.2017

# Media

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Video: Sequestration of Atmospheric Carbon Dioxide as Inorganic Carbon in the Unsaturated Zone of Semi-Arid Forests

Lecture by Murray Moineste et al.

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02.03.2017

# New Publications

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Greene, Charles H.; et al. (2017): Geoengineering, Marine Microalgae, and Climate Stabilization in the 21 st Century

Greene, Charles H.; Huntley, Mark E.; Archibald, Ian; Gerber, Léda N.; Sills, Deborah L.; Granados, Joe et al. (2017): Geoengineering, Marine Microalgae, and Climate Stabilization in the 21 st Century. In Earth's Future. DOI: 10.1002/2016EF000486.

"Here, we describe an alternative approach based on the large-scale industrial production of marine microalgae. When cultivated with proper attention to power, carbon, and nutrient sources, microalgae can be processed to produce a variety of biopetroleum products, including carbon neutral biofuels for the transportation sector and long-lived, potentially carbon-negative construction materials for the built environment."

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02.03.2017

# Media

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ifw Kiel: Climate Change: Restrictions in Research Can Be Rational Under Specific Conditions

Press release for Quaas, Martin F.; et al. (2017). "An interdisciplinary team of experts from environmental economics and meteorology under the lead of the Kiel Institute and the University Kiel has analyzed, under which conditions open ended SRM research should be done. The study has been published in the Journal of Environmental Economics and Management."

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02.03.2017

# Media

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Oxford University: World leaders warned of existential risks in new report

"World leaders must do more to limit risk of global catastrophes, according to a report by Oxford academics launched at the Finnish Embassy in London today."

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02.03.2017

# Media

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CBC: Can a $500 billion geoengineering project save the Arctic from melting? (radio)

Readio broadcast plus transcript.

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27.02.2017

# Calls & events

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Newsletter of Week 09 of 2017

The newsletter of calendar week 9 in 2017 is now available here.


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