The risk of relying on uncertain carbon removal projects can now be quantified using a new standardised metric that can be applied across all such schemes, irrespective of the technology used.

Researchers say Carbon at Risk (CaR), which measures the risk that carbon removal falls short of what was initially contracted, could help regulators, buyers, insurers and investors build diversified portfolios and unlock the massive investment needed to limit global warming to 1.5°C.

Carbon removal projects, ranging from nature-based approaches such as afforestation to more engineered carbon capture technologies, aim to take CO₂ out of the atmosphere and store it for a meaningful period of time.

Read more at: University of Exeter

Photo Credit: Bergadder via Pixabay

 

A collaboration between researchers at Cornell and City University of Hong Kong has produced a new computational tool that could help overcome one surprisingly persistent obstacle to the efficient production of so-called green hydrogen: bubbles.

Green hydrogen, produced by splitting water using electricity from renewable sources, offers a promising alternative to fossil fuels, particularly for industries such as steelmaking and chemical manufacturing.

The researchers developed a computer model that reveals how bubbles forming during water electrolysis interfere with the process and increase the energy required to produce hydrogen. Their findings, published Nov. 9 in the journal EES Catalysis, identify a critical bubble size beyond which energy losses increase dramatically, providing a potential roadmap for designing more efficient hydrogen-producing equipment.

Read More at: Cornell University

 

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