20.05.2019

# Media

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CBS News: Climate-smart farming: Save the Earth - and make money?

"Efforts to reduce greenhouse gas emissions that alter the climate typically focus on the energy industry or getting big companies like Amazon to curb fossil fuel consumption. But farmers can also play a role by using new approaches to climate-friendly farming that can help sequester carbon in the soil."

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20.05.2019

# New Publications

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Amundson, R., & Biardeau, L. (2018). Opinion: Soil carbon sequestration is an elusive climate mitigation tool

Amundson, R., & Biardeau, L. (2018). Opinion: Soil carbon sequestration is an elusive climate mitigation tool. Proceedings of the National Academy of Sciences, 115(46), 11652–11656. https://doi.org/10.1073/pnas.1815901115

"Through changed agricultural techniques, it is proposed, much of this carbon can be restored to domesticated soils and thus serve as a significant tool to mitigate climate change, providing a wider timeframe for society to decarbonize. Unfortunately, both cultural and scientific challenges suggest that this proposal is overly optimistic and inherently flawed."

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15.05.2019

# New Publications

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Xiang, Yanlei; et al. (2019): Study on the biomass-based integrated gasification combined cycle with negative CO2 emissions under different temperatures and pressures

Xiang, Yanlei; Cai, Lei; Guan, Yanwen; Liu, Wenbin; He, Tianzhi; Li, Juan (2019): Study on the biomass-based integrated gasification combined cycle with negative CO2 emissions under different temperatures and pressures. In Energy. DOI: 10.1016/j.energy.2019.05.011.

"The biomass gasification combined cycle and oxy-fuel combustion are integrated. The effect of gasification pressure and temperature on system performance is studied. The thermodynamic analysis of each subsystem is carried out to evaluate the system. The negative CO2 emissions are achieved with a competitive efficiency."

 

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13.05.2019

# Political Papers

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Rhodium Group (2019): Capturing Leadership. Policies for the US to Advance Direct Air Capture Technology

Rhodium Group (2019): Capturing Leadership. Policies for the US to Advance Direct Air Capture Technology. With assistance of John Larsen, Whitney Herndon, Mikhail Grant, Peter Marsters. Carbon180.

"This report focuses on one of these emerging carbon removal technologies: Direct Air Capture (DAC). DAC safely removes CO2 from the air using chemical filters and produces a concentrated stream of CO2 for use in products like concrete and fuels or for permanent geologic storage. Carbon180, the Linden Trust for Conservation, and the ClimateWorks Foundation asked Rhodium Group to conduct an independent analysis of the role DAC can play in supporting a decarbonized US future, its cost, and the actions required to achieve deployment at a scale that can have a global impact on reducing GHGs in the near, medium and long term."

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12.05.2019

# New Publications

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Tanzer, Samantha Eleanor; Ramírez, Andrea (2019): When are negative emissions negative emissions?

Tanzer, Samantha Eleanor; Ramírez, Andrea (2019): When are negative emissions negative emissions? In: Energy Environ. Sci. 12 (4), S. 1210–1218. DOI: 10.1039/C8EE03338B.

"This paper highlights inconsistencies in negative emission accounting in recent NET literature, focusing on the influence of system boundary selection. A quantified step-by-step example provides a clear picture of the impact of system boundary choices on the estimated emissions of a NET system."

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12.05.2019

# Media

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Independent Australia: Forests, logging and climate change

"THE INTERGOVERNMENTAL PANEL for Climate Change (IPCC) recommends that "natural solutions" are employed to deal with climate change emergency. The immediate protection and restoration of natural systems for carbon dioxide removal (CDR) are preferred to geo-engineering and B.E.C.C.S — burning biomass as a fossil fuel substitute while using some sort of carbon capture and storage."

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12.05.2019

# Media

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New York Times: Start-Ups Hoping to Fight Climate Change Struggle as Other Tech Firms Cash In

"With the money he made selling his last start-up to Google, Matt Rogers has been investing in companies that are trying to fight climate change. Mr. Rogers, one of the founders of the digital thermostat company Nest, has put millions of dollars into start-ups whose goal is to remove carbon dioxide from the atmosphere. Carbon-removal technology, as it is known, is something that scientists have said will probably be necessary to avert an extreme increase in global temperatures."

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08.05.2019

# Media

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Nori: Andrew Yang talks carbon removal and geoengineering

"2020 Democratic presidential primary contender Andrew Yang discusses his plans for carbon removal and geoengineering if elected United States president."

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05.05.2019

# New Publications

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Mašek, O.; et al. (2019): Potassium doping increases biochar carbon sequestration potential by 45%, facilitating decoupling of carbon sequestration from soil improvement

Mašek, O.; Buss, W.; Brownsort, P.; Rovere, M.; Tagliaferro, A.; Zhao, L. et al. (2019): Potassium doping increases biochar carbon sequestration potential by 45%, facilitating decoupling of carbon sequestration from soil improvement. In: Scientific reports 9 (1), S. 5514. DOI: 10.1038/s41598-019-41953-0.

"Negative emissions technologies offer an important tool to limit the global warming to <2 °C. Biochar is one of only a few such technologies, and the one at highest technology readiness level. Here we show that potassium as a low-concentration additive in biochar production can increase biochar’s carbon sequestration potential; by up to 45% in this study."

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05.05.2019

# Media

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Moderndiplomacy: The Existential Crisis of Global Warming and Carbon Capture

"Direct air carbon capture and storage (DACCS) is an enticing prospect until one examines the costs.  Scientific scenarios project DACCS capacity to remove 10-15 billion tons of CO2 per year by century’s end.  Optimists up it to 35-40 billion tons solving the CO2 problem in one fell swoop.  Not so, say those who have examined costs."

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