August 2019

19.08.2019

# Media

0 Comments

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."

LINK


Read more »

19.08.2019

# New Publications

0 Comments

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."

LINK


Read more »

19.08.2019

# Media

0 Comments

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."

LINK


Read more »

14.08.2019

# Media

0 Comments

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."

LINK


Read more »

14.08.2019

# Calls & events

0 Comments

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."

LINK


Read more »

12.08.2019

# Calls & events

0 Comments

Newsletter of Week 33 of 2019

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


Read more »

12.08.2019

# Political Papers

0 Comments

IPCC: Land is a Critical Resource, IPCC report says

"Land is already under growing human pressure and climate change is adding to these pressures. At the same time, keeping global warming to well below 2ºC can be achieved only by reducing greenhouse gas emissions from all sectors including land and food, the Intergovernmental Panel on Climate Change (IPCC) said in its latest report on Thursday."

LINK


Read more »

12.08.2019

# New Publications

0 Comments

Duan, L.; et al. (2019): Climate Response to Pulse Versus Sustained Stratospheric Aerosol Forcing

Duan, L.; Cao, L.; Bala, G.; Caldeira, K. (2019): Climate Response to Pulse Versus Sustained Stratospheric Aerosol Forcing. In: Geophys. Res. Lett., S. 1. DOI: 10.1029/2019GL083701.

"Solar geoengineering has been suggested as a potential means to counteract anthropogenic warming. Major volcanic eruptions have been used as natural analogues to large‐scale deployments of stratospheric aerosol geoengineering, yet difference in climate responses to these forcings remains unclear."

LINK


Read more »

12.08.2019

# Media

0 Comments

Science: Bioenergy not a climate cure-all, panel warns

"In the effort to keep the planet from reaching dangerous temperatures, a hybrid approach called BECCS (bioenergy with carbon capture and storage) has a seductive appeal. Crops suck carbon dioxide (CO2) from the atmosphere, power plants burn the biomass to generate electricity, and the emissions are captured in a smokestack and pumped underground for long-term storage."

LINK


Read more »

12.08.2019

# New Publications

0 Comments

Shi, X.; et al. (2019): Sorbents for Direct Capture of CO2 from Ambient Air

Shi, X.; Xiao, H.; Azarabadi, H.; Song, J.; Wu, X.; Chen, X.; Lackner, K. (2019): Sorbents for Direct Capture of CO2 from Ambient Air. In: Angewandte Chemie (International ed. in English). DOI: 10.1002/anie.201906756.

"The urgency to address global climate change induced by greenhouse gas emissions is growing. In particular, the rise in atmospheric CO2 levels is generating alarm. [...] This paper reviews major types of sorbents designed to capture CO2 from ambient air, which are categorized by sorption mechanism: physisorption, chemisorption, and moisture‐swing sorption."

LINK


Read more »