07.06.2017

# Media

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Carbon Brief: IEA: World can reach ‘net zero’ emissions by 2060 to meet Paris climate goals

"Global emissions can be pushed down to “net zero” by 2060 to meet the climate goals of the Paris Agreement, says the International Energy Agency (IEA)."

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07.06.2017

# Calls & events

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Newsletter of Week 23 of 2017

The newsletter of calendar week 23 in 2017 is now available here.


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06.06.2017

# Media

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Nextbigfuture Blog: Paris agreement’s tiny slowing of Global CO2 emissions growth mean we reach the same result 30-180 days later in the 2030s

"Geoengineering will eventually have to be used if we really wanted a cooler world"

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02.06.2017

# New Publications

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Zhao, Liyun; et al. (2017): Glacier evolution in high-mountain Asia under stratospheric sulfate aerosol injection geoengineering

Zhao, Liyun; Yang, Yi; Cheng, Wei; Ji, Duoying; Moore, John C. (2017): Glacier evolution in high-mountain Asia under stratospheric sulfate aerosol injection geoengineering. In: Atmos. Chem. Phys. 17 (11), S. 6547–6564. DOI: 10.5194/acp-17-6547-2017 

"We examine this hypothesis for the glaciers in high-mountain Asia using a glacier mass balance model driven by climate simulations from the Geoengineering Model Intercomparison Project (GeoMIP). The G3 and G4 schemes specify use of stratospheric sulfate aerosols to reduce the radiative forcing under the Representative Concentration Pathway (RCP) 4.5 scenario for the 50 years between 2020 and 2069, and for a further 20 years after termination of geoengineering. We estimate and compare glacier volume loss for every glacier in the region using a glacier model based on surface mass balance parameterization under climate projections from three Earth system models under G3, five models under G4, and six models under RCP4.5 and RCP8.5."

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02.06.2017

# New Publications

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Ahlm, Lars; et al. (2017): Marine cloud brightening – as effective without clouds

"Here we present results from coordinated simulations with three Earth system models (ESMs) participating in the Geoengineering Model Intercomparison Project (GeoMIP) G4sea-salt experiment. Injection rates of accumulation mode sea spray aerosol particles over ocean between 30° N and 30° S are set in each model to generate a global-mean effective radiative forcing (ERF) of −2.0 W m−2 at the top of atmosphere. We find that the injection increases the cloud droplet number concentration in lower layers, reduces the cloud-top effective droplet radius, and increases the cloud optical depth over the injection area."

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02.06.2017

# Media

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New Scientist: Geoengineering fears make scrutiny of ocean seeding test vital

"Talk of dumping iron into the ocean off Chile to boost plankton is a return of a controversial idea that warrants questions, says Olive Heffernan"

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02.06.2017

# Media

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Science: In Switzerland, a giant new machine is sucking carbon directly from the air

"The world's first commercial plant for capturing carbon dioxide directly from the air opened yesterday, refueling a debate about whether the technology can truly play a significant role in removing greenhouse gases already in the atmosphere. The Climeworks AG facility near Zurich becomes the first ever to capture CO2 at industrial scale from air and sell it directly to a buyer."

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29.05.2017

# Calls & events

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Newsletter of Week 22 of 2017

The newsletter of calendar week 22 in 2017 is now available here.


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29.05.2017

# Media

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Clean Technica: Solar Geoengineering Is Science’s Risky Plan B For Stopping Climate Change

"Faced with rising temperatures and a dearth of American leadership, scientists are investigating geoengineering — deliberate, large-scale interventions to cool the Earth’s climate. Geoengineering can take many forms. Solar geoengineering is the most risky and controversial."

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26.05.2017

# Media

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Nexus Media: A Dangerous Plan to Stop Climate Change

"Trump is gutting climate protections. Scientists have a very risky Plan B."

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