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Revolutionary research: carbon sequestration through enhanced rock weathering!
The Agnes Mackensen Program at the University of Munich supports FINTA* talents in geosciences with innovative research into CO₂ reduction.
Revolutionary research: carbon sequestration through enhanced rock weathering!
On June 3, 2025, an important research project will take place at the Technical University of Munich, which will particularly promote equal opportunities in the natural sciences. The Agnes Mackensen program is aimed at FINTA* who are the first in their family to start studying. As part of this program, master's student Anna Lena Salfer has the opportunity to complete a research stay in Singapore.
Salfer works in the laboratory at Nanyang Technological University (NTU) and is at the center of innovative research into enhanced rock weathering (EW). This is a technology that contributes to carbon sequestration in agricultural soils. This process aims to exploit the weathering potential of rocks to reduce atmospheric CO₂.
Enhanced Rock Weathering and Climate Protection
Enhanced weathering is a form of geoengineering that accelerates the removal of CO₂ from the atmosphere. Finely ground rock particles, usually silicate rocks such as basalt, are spread onto agricultural land. This process promotes the conversion of CO₂ into bicarbonate ions, leading to carbon storage. Salfer's research team analyzes the geoscientific data and carries out modeling in order to comprehensively understand the effectiveness and challenges of the technology.
One of the advantages of EW is the simultaneous improvement of soil fertility. The technology also contributes to the alkalinization of oceans and rivers, increasing the potential for increased carbon sequestration. This regenerative farming practice is increasingly recognized as a strategic measure to mitigate climate change.
Research and sustainability
The research project supports the creation of credible emissions trading projects in Southeast Asia. This is particularly relevant because reducing CO₂ emissions is a central goal in the fight against climate change. The methodology for determining CO₂ emissions was optimized using mathematical models based on energy consumption and emission factors. For example, a 40% reduction in the CO₂ emissions factor could result in significant emissions savings.
Additionally, research is needed to understand the long-term effects of adding silicates to soils and oceans. Studies show that soils, forests and oceans are natural carbon sinks and can make a decisive contribution to reducing CO₂. Innovative approaches to CO₂ reduction, such as the development of renewable energies and advanced energy storage systems, are also discussed.
The challenges facing the research include high energy requirements for grinding the rocks and possible health effects from inhaling rock powder. Nevertheless, EW is considered a complementary land conservation strategy that together contributes to ecosystem resilience and climate change mitigation.
The Technical University of Munich and its partners are determined to advance research and, together with students like Anna Lena Salfer, develop solutions to tackle the global climate crisis. In this way, education is used not only to promote sustainable practices, but also to train future professionals in the geosciences.