10.04.2018

# Media

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Yale Environment 360: Why Green Groups Are Split on Subsidizing Carbon Capture Technology

"Environmentalists are divided over a provision in the recently approved U.S. budget that increases tax credits for projects that capture and store CO2. Critics say new subsidies for “enhanced oil recovery” included in the budget bill would simply encourage companies to pump more oil."

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10.04.2018

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Phys.org: New research gives precise look at underground CO2 abatement process

"Environmental scientists trying to mitigate the effects of CO2 have experimented with injecting it deep underground, where it becomes trapped. These trials have mainly taken place in sandstone aquifers, however, the injected CO2 primarily remains present as a bubble that can return to the surface if is there are fracture in the capping formation. A different approach using flows as injection sites—chiefly at the CarbFix site in Iceland and in Washington state—has yielded dramatic results. Metals in basalt have the ability to transform CO2 into a solid inert mineral in a matter of months. While the new method holds promise, the underground injections can be imprecise, difficult to track and measure."

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10.04.2018

# New Publications

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Lenton, Andrew; et al. (2018): Assessing carbon dioxide removal through global and regional ocean alkalinization under high and low emission pathways

Lenton, Andrew; Matear, Richard J.; Keller, David P.; Scott, Vivian; Vaughan, Naomi E. (2018): Assessing carbon dioxide removal through global and regional ocean alkalinization under high and low emission pathways. In Earth Syst. Dynam. 9 (2), pp. 339–357. DOI: 10.5194/esd-9-339-2018.

"Artificial ocean alkalinization (AOA) is capable of reducing atmospheric CO2 concentrations and surface warming and addressing ocean acidification. Here, we simulate global and regional responses to alkalinity (ALK) addition (0.25 PmolALK yr−1) over the period 2020–2100 using the CSIRO-Mk3L-COAL Earth System Model, under high (Representative Concentration Pathway 8.5; RCP8.5) and low (RCP2.6) emissions. While regionally there are large changes in alkalinity associated with locations of AOA, globally we see only a very weak dependence on where and when AOA is applied. "

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10.04.2018

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Science Daily: Geoengineering risks losers as well as winners for climate and wildfire risks

"Artificially altering the climate system to limit global warming to 1.5 degrees Celsius could increase the risks of wildfires in some areas, new research suggests."

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10.04.2018

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Science Newsline: Geoengineering Risks Losers as Well as Winners for Climate And Wildfire Risks

"However, the new research suggests that this method of geoengineering could also introduce its own new impacts by shifting global rainfall patterns. The research by scientists at the University of Exeter and the Met Office Hadley Centre, carried out as part of the EU-funded project HELIX, looked at the implications of this for global patterns of wildfire using computer models of the global climate."

 

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10.04.2018

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Technology News: Geoengineering risks losers as well as winners for climate and wildfire risks

"Artificially altering the climate system to limit global warming to 1.5 degrees Celsius could increase the risks of wildfires in some areas, new research suggests."

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10.04.2018

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Phys.org: Geoengineering risks losers as well as winners for climate and wildfire risks

"Artificially altering the climate system to limit global warming to 1.5C could increase the risks of wildfires in some areas, new research suggests. While the international community is already aiming to limit global warming to below 2C by reducing greenhouse gas emissions, the more ambitious aim of a 1.5C limit is known to be challenging to reach in this way.

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10.04.2018

# New Publications

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Burton, C.; et al. (2018): Will fire danger be reduced by using Solar Radiation Management to limit global warming to 1.5°C compared to 2.0°C?

Burton, C.; Betts, R. A.; Jones, C. D.; Williams, K. (2018): Will fire danger be reduced by using Solar Radiation Management to limit global warming to 1.5°C compared to 2.0°C? In Geophys. Res. Lett. DOI: 10.1002/2018GL077848.

"Here we assess one theoretical solution using Solar Radiation Management to limit global mean warming to 1.5°C above pre‐industrial temperatures, and use the McArthur fire danger index to evaluate the change in fire danger. The results show that globally fire danger is reduced in most areas when temperatures are limited to 1.5°C compared to 2.0°C. The number of days where fire danger is ‘high’ or above is reduced by up to 30 days per year on average, although there are regional variations. In certain regions, fire danger is increased, experiencing 31 more days above ‘high’ fire danger. "

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10.04.2018

# New Publications

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Shue, Henry (2018): Mitigation gambles. Uncertainty, urgency and the last gamble possible

Shue, Henry (2018): Mitigation gambles. Uncertainty, urgency and the last gamble possible. In Philos Transact A Math Phys Eng Sci 376 (2119). DOI: 10.1098/rsta.2017.0105.

"Reliance on negative emissions later instead of ambitious mitigation now permits the passing of tipping points for irreversible change meanwhile, and non-carbon energy is rapidly becoming price competitive in developing countries like India that are committed to poverty alleviation."

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10.04.2018

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Missoulian: Playing God: University of Montana thinker asks if we're ready

With Christopher Preston.

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