17.03.2017

# Media

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Gasworld: Climeworks to hold opening ceremony for world’s first commercial DAC plant

"The company will hold a grand opening in Hinwil near Zürich, Switzerland, on 31st May, to officially signify the occasion, where special guest speaker Julio Friedmann, a US expert in carbon capture and storage (CCS) technology, will talk about DAC and the pressing need for negative emission technologies."

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12.03.2017

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Deutschlandfunk: Cooling the climate with iron aerosols (German)

German radio broadcast on Franz Oeste's study on iron aerosols.

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11.03.2017

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environmental research web: More diverse benefits from timber versus dedicated bioenergy plantations for terrestrial carbon dioxide removal

"Reducing atmospheric carbon dioxide concentrations by way of large-scale enhancement of terrestrial carbon sinks is one climate engineering strategy that requires comprehensive scrutiny given its complexity, say Thomas O'Halloran and Ryan Bright."

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06.03.2017

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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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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

# 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

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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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27.02.2017

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Marketplace: Changing carbon from waste into gold

"For the most part, fighting against climate change means keeping as much carbon out of the air as possible, whether that means generating energy from solar and wind sources or capturing the carbon that comes out of less-clean sources. Strategies for captured carbon include liquefying it and storing it underground. Some companies, though, are turning that waste carbon into a revenue source. At its facilities in Los Gatos, California, the company Blue Planet takes the carbon dioxide that factories collect, runs it through tiny nanotubes in their machines and converts it into carbonate. The limestone rock that results will be used as a necessary component of concrete."

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27.02.2017

# Media

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Geoengineering Monitor: Pulling carbon out of the air: NETS, BECCS, and CDR

"Geoengineering Monitor has long reported on the speculative concept of “negative emissions”, together with certain favored approaches such as bioenergy with carbon capture and storage (BECCS) – a geoengineering technique which recent studies show would have significant negative impacts on biodiversity, food security, and livelihoods. To get a better sense of the technologies under discussion, we sent a correspondent to a “Carbon Dioxide Removal / Negative Emissions Technologies (NETs)” workshop earlier this month, co-sponsored by fora associated with American University, University of California – Berkeley, and Arizona State University."

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