Researchers have demonstrated a new method for continuously monitoring the environment just below Earth’s surface using a small seismic source and fiber-optic cables.<br />
Conventional carbon capture is limited by high transportation costs and the need for intensive purification. Membrane-based direct air capture is a promising alternative because capture and storage can be performed at the same remote sites, and low CO2 purity is acceptable for geological storage because the impurities are not hazardous. Molecular dynamics simulations of geological storage of CO2-N2-O2 mixtures from direct air capture demonstrated that this approach is both environmentally acceptable and economically viable.
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IMAGE: Using a method to better locate the source of weak tremors from regions with complex geological features, researchers from Kyushu University s International Institute for Carbon-Neutral Energy Research found that many. view more
Credit: Takeshi Tsuji, Kyushu University
Researchers from Japan and Indonesia have pioneered a new method for more accurately estimating the source of weak ground vibrations in areas where one tectonic plate is sliding under another in the sea. Applying the approach to Japan s Nankai Trough, the researchers were able to estimate previously unknown properties in the region, demonstrating the method s promise to help probe properties needed for better monitoring and understanding larger earthquakes along this and other plate interfaces.