05.12.2018

# Media

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The Conversation: Time is running out on climate change, but geoengineering has dangers of its own

"We have just 12 years left to reduce emissions and achieve the Paris Agreement’s highest ambition of limiting warming to 1.5°C. We have been warned, repeatedly, of the high stakes of our present climate gamble. If we continue on our current course, radical solutions are going to be needed sooner rather than later."

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05.12.2018

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Nature: Put more carbon in soils to meet Paris climate pledges

"Soils are crucial to managing climate change. They contain two to three times more carbon than the atmosphere. Plants circulate carbon dioxide from the air to soils, and consume about one-third of the CO2 that humans produce. Of that, about 10–15% ends up in the earth."

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05.12.2018

# Media

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Science alert: Harvard Scientists Will Actually Launch a Geoengineering Experiment Next Year

"Last month, new research from Harvard and Yale led to a flurry of news claiming scientists were proposing to 'dim the Sun' in an "ingenious but as-yet-unproven way to tackle climate change". Only, they weren't. As other outlets made clear, the paper was actually an analysis of whether solar geoengineering is technically and economically feasible, nothing more."

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03.12.2018

# Calls & events

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Newsletter of Week 49 of 2018

The newsletter of calendar week 49 in 2018 is now available here.


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03.12.2018

# Media

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Helmholtz: Climate Engineering: Tinkering the Climate (German)

German article on CE.

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03.12.2018

# New Publications

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Nauer, P.; et al. (2018): Termite mounds mitigate half of termite methane emissions

Nauer, P.; Hutley, L.; Arndt, S. (2018): Termite mounds mitigate half of termite methane emissions. In: Proceedings of the National Academy of Sciences of the United States of America. DOI: 10.1073/pnas.1809790115.

"Termites are important decomposers of plant material in tropical ecosystems, and thereby produce globally significant amounts of the greenhouse gas CH4. Here, we provide a mechanistic understanding of CH4 turnover in termite mounds to fill a long-standing knowledge gap. Using field measurements, we show that termite mounds oxidize, on average, half of the CH4 produced by termites before emission. This “hidden” biofilter mechanism is mediated by methanotrophic bacteria living in the mound walls or the soil beneath, for which internal termite-mound structures can facilitate CH4 transport. Process links within the mound stabilize the filter efficiency. Moreover, we estimate undisturbed termite biomass via CH4 emissions. This knowledge is crucial to reduce uncertainty in global termite-derived CH4 emissions."

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03.12.2018

# Media

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BBC News: Climate change: Can 12 billion tonnes of carbon be sucked from the air?

"[...] The most headline-grabbing solution is for giant machines to filter the air and strip out the gas, as my colleague Matt McGrath has reported. But although the costs are falling, they remain very high and many wonder whether it's feasible to plaster the planet with so much hardware."

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03.12.2018

# Calls & events

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Job at Union of Concerned Scientists

Deadline: 11. December 2018

"The Union of Concerned Scientists (UCS), the leading science-based organization at the center of today’s most exciting and important policy debates, seeks outstanding candidates for its Kendall Science Fellows program. This two-year fellowship is open to candidates who will have completed their Ph.D. in the physical sciences, engineering, economics, or other relevant technical or multidisciplinary subject before Fall 2019. The fellow will investigate the potential for carbon dioxide removal (CDR) from the atmosphere, along with the research agenda, policies, and funding needed to effectively, economically, and safely deploy negative emissions technologies (NETs) to help meet the carbon emissions goals (net-zero by mid-century) arising from the Paris Agreement."

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03.12.2018

# Media

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UrbDeZine: Climate Change Geoengineering: Moral Hazard of the Moral Hazard argument

"CBS News recently published an article about seeding the atmosphere with aerosols to reflect a portion of the sun’s rays away from earth as a viable method to cool the climate.  This method is sometimes referred to as the albedo method.  As noted in the article, it is controversial but has long been viewed as one of the most feasible and relatively inexpensive ways to turn down the Earth’s emissions-induced heat."

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03.12.2018

# Media

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The Times: Fake eruption could dim sun and combat global warming

"A scheme to dim the sun by mimicking the impact of volcanic eruptions will move a step closer next year with the first experiment in the stratosphere."

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