06.09.2017

# Media

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Bloomberg Businessweek: The Climate Engineers Sucking CO₂ From the Atmosphere—and Making Money Doing It

"Chris Gebald and Jan Wurzbacher turned a college project into a world-changing machine."

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04.09.2017

# Calls & events

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Newsletter of Week 36 of 2017

The newsletter of calendar week 36 in 2017 is now available here.


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04.09.2017

# Media

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Australien National University: Biofuel breakthroughs bring ‘negative emissions’ a step closer

"The use of biofuels helps reduce human greenhouse gas emissions. That’s one reason why some petroleum companies offer petrol containing up to 10% ethanol (a biofuel). But if we are to have any real chance of avoiding catastrophic climate change, it is not enough to reduce our emissions; we must put the process into reverse. We must aim for “negative emissions”. This means removing carbon dioxide from the atmosphere, and ideally returning to pre-industrial atmospheric CO₂ levels. This is a daunting task: the present atmospheric concentration is 410 parts per million (ppm), compared with around 280ppm before the Industrial Revolution."

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03.09.2017

# Media

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Medium: How Geoengineering Really Works & Why It Isn’t Terrifying

A series in three parts. "These scientists, companies, and researchers are trying to hack the planet and fight global warming."

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01.09.2017

# Media

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Mother Jones: China’s Crazy Plan to Keep Sand From Swallowing the World

 

"The view from the top of this windblown hill in Duolun County, in China’s Inner Mongolia region, could be described as either profoundly inspiring or deeply strange. For miles around, the earth is dun-colored and dry, stubbled with yellow grass. But the hillsides directly across from me are emblazoned with vast swaths of trees planted in geometric shapes: a square, a circle, overlapping triangles. The flatland below is striped with bands of identical young pines, standing in rigid formation like soldiers on parade."

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01.09.2017

# New Publications

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Richler, Jenn (2017): Geoengineering. Perceived controllability

Richler, Jenn (2017): Geoengineering. Perceived controllability. In Nature Climate change 7 (9), p. 624. DOI: 10.1038/nclimate3384.

"Scientists and engineers are beginning to assess the feasibility of geoengineering interventions, such as removing CO2 from the atmosphere, to complement emissions reductions to moderate climate change. Because these efforts rely on new and unfamiliar technology they have attracted public scrutiny. However, it is not…"

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01.09.2017

# New Publications

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Keith, David W.; et al. (2017): Solar geoengineering reduces atmospheric carbon burden

Keith, David W.; Wagner, Gernot; Zabel, Claire L. (2017): Solar geoengineering reduces atmospheric carbon burden. In Nature Climate change 7 (9), pp. 617–619. DOI: 10.1038/nclimate3376.

"Solar geoengineering is no substitute for cutting emissions, but could nevertheless help reduce the atmospheric carbon burden. In the extreme, if solar geoengineering were used to hold radiative forcing constant under RCP8.5, the carbon burden may be reduced by ~100 GTC, equivalent to 12–26% of twenty-first-century emissions at a cost of under US$0.5 per tCO2."

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31.08.2017

# Media

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Phys.org: Biofuel breakthroughs bring 'negative emissions' a step closer

"We must aim for "negative emissions". This means removing carbon dioxide from the atmosphere, and ideally returning to pre-industrial atmospheric CO₂ levels. This is a daunting task: the present atmospheric concentration is 410 parts per million (ppm), compared with around 280ppm before the Industrial Revolution. Intriguingly, recent breakthroughs (see below) in biofuel research have brought this prospect a step closer. To understand why, we must first know a little about biofuel production."

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31.08.2017

# Projects

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Project News: Overview on modelling in the SPP 1689

Overview on modelling in the SPP 1689

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30.08.2017

# New Publications

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Keller, David P.; et al. (2017): The Carbon Dioxide Removal Model Intercomparison Project (CDR-MIP). Rationale and experimental design

Keller, David P.; Lenton, Andrew; Scott, Vivian; Vaughan, Naomi E.; Bauer, Nico; Ji, Duoying et al. (2017): The Carbon Dioxide Removal Model Intercomparison Project (CDR-MIP). Rationale and experimental design. In Geosci. Model Dev. Discuss., pp. 1–72. DOI: 10.5194/gmd-2017-168.

"At present, there is little consensus on the impacts and efficacy of the different types of proposed CDR. To address this need the Carbon Dioxide Removal Model Intercomparison Project (or CDR-MIP) was initiated. This project brings together models of the Earth system in a common framework to explore the potential, impacts, and challenges of CDR. Here, we describe the first set of CDR-MIP experiments that are designed to address questions concerning CDR-induced climate "reversibility", the response of the Earth system to direct atmospheric CO2 removal (direct air capture and storage), and the CDR potential and impacts of afforestation/reforestation, as well as ocean alkalinization."

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