07.03.2017

# Media

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Global Challenges Foundation: Toward governance frameworks for climate geoengineering

"What are the governance frameworks required to deploy geoengineering interventions in a fair manner? Climate geoengineering techniques could give humanity much needed breathing space to face the dangers of climate change, but their implementation raises many questions, and will require the development of new global governance mechanisms."

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07.03.2017

# Media

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Miljopodden: Geoengineering (podcast)

"Geoengineering. A scientific utopic way of solving climate change or a reality that we must deal with? In this episode we have invited Ina Möller, a PhD student at Lund University, who explains for us the unknown science of Geoengineering."

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06.03.2017

# Calls & events

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Newsletter of Week 10 of 2017

The newsletter of calendar week 10 in 2017 is now available here.


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06.03.2017

# Media

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Smithsonian: Human Pollution May Be Fertilizing The Oceans. That’s Not a Good Thing

"Phillip Boyd, a marine biogeochemist at the University of Tasmania who was not involved in the research, says the study provides "compelling evidence" that these atmospheric interactions can make emitted iron available to ocean life. However, the scientists are "sort of halfway there" when it comes to seeing how much impact manmade iron fertilization actually has, says Boyd, who is a leading researcher on ocean-climate interactions and geoengineering."

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06.03.2017

# New Publications

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Smith, C. J.; et al. (2017): Impacts of stratospheric sulfate geoengineering on global solar photovoltaic and concentrating solar power resource. (in press)

Smith, C. J.; Crook, J. A.; Crook, R. (2017): Impacts of stratospheric sulfate geoengineering on global solar photovoltaic and concentrating solar power resource. (in press). In Journal of Applied Meteorology and Climatology.

"We analyze results from the HadGEM2-CCS climate model with stratospheric emissions of 10 Tg yr-1 of SO2, designed to offset global temperature rise by around 1°C. A reduction in concentrating solar power (CSP) output of 5.9% on average over land is shown under SSI compared to a baseline future climate change scenario (RCP4.5) due to a decrease in direct radiation."

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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."

LINK


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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.

LINK


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