Results 41 to 50 of about 319 (147)

The potential of the BBNJ clearing house mechanism to enhance knowledge pluralism in marine carbon dioxide removal assessment

Frontiers in Climate
As the global community intensifies efforts to achieve net-zero greenhouse gas emissions, active carbon dioxide removal (CDR) is being planned alongside emission reductions.
Miranda Boettcher, Miranda Boettcher, Kerryn Brent   +2 more
doaj   +1 more source

Investigating the cognitive demand levels in probability and counting principles learning tasks from an online mathematics textbook

Pythagoras, 2022
This case study carried out during the 2020 coronavirus disease of 2019 (COVID-19) lockdown used online data collection means to investigate the distribution of cognitive demand levels of probability and counting principles (PCP) learning tasks in a ...
George Ekol, Simphiwe Mlotshwa
doaj   +1 more source

Lethal by Design? Resolving Differences Between Experimental and Real‐World Alkalinity Perturbations in Ocean Alkalinity Enhancement

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Ocean alkalinity enhancement (OAE) aims to mitigate climate change by increasing the chemical capacity of seawater to store anthropogenic CO2. OAE can be implemented through multiple pathways, each of which intentionally modifies marine carbonate chemistry through increases in total alkalinity (TA).
Lennart T. Bach, Michael D. Tyka, Bin Wang, Katja Fennel   +3 more
wiley   +1 more source

Framework for Ecotoxicological Modeling of mCDR (FEMM)

The Framework for Ecotoxicological Modeling of mCDR (FEMM) addresses the need for mCDR ERA guidance. FEMM integrates statistical and mechanistic modeling tools into a modular, tiered framework for evaluating ecotoxicological risk and other exposure-mediated risks associated with mCDR projects.
Hourglass Climate, Weighman, Kristi, Jankowska, Emilia, Andrews, M. Grace   +3 more
openaire   +1 more source

Laying waste to the deep: parallel narratives of marine carbon dioxide removal and deep-seabed mining

npj Ocean Sustainability
The deep ocean is increasingly featured in climate solution discussions. An emerging narrative suggests that marine carbon dioxide removal (mCDR) is essential to meet global climate targets. The argument made is similar to claims that deep-seabed mining (
Susanna Lidström, Lisa A. Levin, Sarah Seabrook   +2 more
doaj   +1 more source

Parameterizing air–sea CO2 transfer in a macroalgal habitat and assessing its role in marine carbon dioxide removal accounting

Limnology and Oceanography Letters, Volume 11, Issue 4, July 2026.
Abstract Accurately quantifying air–sea CO2 exchange remains a central challenge for the measurement, reporting, and verification (MRV) of marine carbon dioxide removal. I apply direct eddy covariance measurements of CO2 fluxes at a macroalgae‐dominated coast to compile the first gas transfer velocity (k660) parameterization for such a habitat.
Bryce Van Dam
wiley   +1 more source

Towards system-aware governance of marine carbon dioxide removal: a review of interdependent challenges

Environmental Research Letters
Marine carbon dioxide removal (mCDR) is increasingly discussed as a potential climate response, yet its governance remains underdeveloped. This study conducts a structured literature review, following the preferred reporting items for systematic reviews ...
Lina Röschel
doaj   +1 more source

Economic Assessment of Ocean Alkalinity Enhancement Through Electrodialysis: The Role of Carbon Credits in Comparing Solar Energy and Thermal Waste Technologies

Advanced Sustainable Systems, Volume 10, Issue 6, June 2026.
This study evaluates the economic feasibility of an Ocean Alkalinity Enhancement (OAE) plant with an annual CO2 removal capacity of 878 tonnes. The project is profitable only under scenarios with high carbon credit prices, while medium and low‐price scenarios yield a negative net present value.
Idiano D'Adamo, Gabriele Graziano, Francesco Ferella   +2 more
wiley   +1 more source

Homoisoflavonoids—From Natural Specificity and Biosynthesis to Precision Health‐Promoting Mechanisms

Food Frontiers, Volume 7, Issue 3, May 2026.
Homoisoflavonoids are rare flavonoids with a unique bi‐aromatic oxygen‐heterocyclic structure. This review synthesizes their structure–activity relationships in anti‐inflammatory, hypoglycemic, and anticancer contexts. By highlighting their specific natural distribution and outlining biosynthetic pathways, it provides a conceptual framework and ...
Jing Zhang, Han Chen, Jinping Si, Zhigang Han, Xinfeng Zhang   +4 more
wiley   +1 more source

Three challenges to marine carbon dioxide removal

npj Ocean Sustainability
Reaching the Paris Agreement target to limit global warming below 1.5 °C requires both decarbonization and the removal of carbon dioxide from the atmosphere.
Victor Brun, Marine Lecerf, Olivia Le Gouvello, Isabella Reis Costa, Chris Bowler, Robert Blasiak, Laurent Bopp, Ken Buesseler, Helen S. Findlay, Jean-Pierre Gattuso, David T. Ho, Lisa A. Levin, Lauren S. Mullineaux, Fabrice Pernet, Hans-O. Pörtner, Yunne-Jai Shin, Robert C. Steenkamp, Torsten Thiele, Joachim Claudet   +18 more
doaj   +1 more source