19.08.2019

# Calls & events

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Newsletter of Week 34 of 2019

The newsletter of calendar week 34 in 2019 is now available here.


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19.08.2019

# Media

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The Economist: Sunshady business—the politics of geoengineering (Podcast)

"If efforts to cut emissions fall short, might some nations resort to solar geoengineering—building a sunshade in the stratosphere—to buy more time?"

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19.08.2019

# New Publications

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Holahan, R.; et al. (2019): Disentangling the rhetoric of public goods from their externalities: The case of climate engineering

Holahan, R.; Kashwan, P. (2019): Disentangling the rhetoric of public goods from their externalities: The case of climate engineering. In: Global Transitions 1, S. 132–140. DOI: 10.1016/j.glt.2019.07.001.

"Public goods are defined by the technical conditions of nonexclusion and nonrivalry. Nonetheless, public goods are frequently viewed in environmental policy and scholarly debates as providing strictly positive benefits (or, in the case of public ‘bads’, providing strictly negative costs). We provide a theoretical understanding of heterogeneous externalities produced by public goods to challenge this assumption, by highlighting the ways in which a single public good can simultaneously produce positive benefits for some and negative externalities for others."

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19.08.2019

# Media

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BBC News: Deforestation: Did Ethiopia plant 350 million trees in a day?

"Ethiopia says it planted more than 350 million trees in just one day which, if verified, would be a world record."

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19.08.2019

# Media

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Strip Blog: Decrement carbon: Stripe's negative emissions commitment

"As part of Stripe’s environmental program, we fully offset our greenhouse gas emissions by purchasing verified carbon offsets. Starting this year, we’re going a step further. In addition to our offset program, we are committing to pay, at any available price, for the direct removal of carbon dioxide from the atmosphere and its sequestration in secure, long-term storage. We’re announcing this commitment to solicit technology partners and to urge other companies to follow suit."

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19.08.2019

# New Publications

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Rickels, W.; et al. (2019): (Mis)conceptions about modelling of negative emissions technologies

Rickels, W.; Merk, C.; Reith, F.; Keller, D.; Oschlies, A. (2019): (Mis)conceptions about modelling of negative emissions technologies. In: Environ. Res. Lett.

"Intentionally removing carbon from the atmosphere with negative emission technologies (NETs) will be important to achieve net-zero emissions by mid-century and to limit global warming to 2°C or even 1.5°C (IPCC, 2018). [...] Here, we show the results from an anonymous expert survey, including 32 Earth-System-Model (ESM) experts and 18 Integrated-Assessment-Model (IAM) experts, about the role of NETs in future climate policies and about how well the various technologies are represented in current models. We find that they strongly support the view that technology portfolios are requires to achieve negative emissions, however, the responses show that the number and range of NETs that can be assessed in IAMs is small and that IAMs and ESMs are rather applied to analyze technologies separately than in combination."

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19.08.2019

# Media

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Chemistry World: Engineered cyanobacteria turn carbon dioxide into petrol substitute

"Scientists in Sweden have engineered cyanobacteria that can photosynthesise the petrol substitute butanol out of carbon dioxide. The microorganisms could not only provide a way to make transportation fuels that don’t depend on fossil fuels, but they could also remove carbon dioxide already present in the atmosphere."

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14.08.2019

# Media

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Dailymail: Could dimming the sun save the Earth?

"The plan sounds like science fiction — but could be fact within a decade; every day more than 800 giant aircraft would lift millions of tonnes of chalk dust to a height of 12 miles above the Earth's surface and then sprinkle the lot high around the stratosphere. In theory, the airborne dust would create a gigantic sunshade, reflecting some of the Sun's rays and heat back into space, dimming those that get through and so protecting Earth from the worsening ravages of climate warming."

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14.08.2019

# Calls & events

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Call for Application: Gordon Research Conference: Climate Engineering

Deadline: 31. May 2020

"This conference focuses on better understanding the processes and impacts associated with radiation management. This includes processes specific to individual methods, the projected climate response and its uncertainties, and the impacts, including those in the developing world, as well as the engineering aspects and the design of research to address risk."

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12.08.2019

# Calls & events

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Newsletter of Week 33 of 2019

The newsletter of calendar week 33 in 2019 is now available here.


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