New research has overturned the traditional view that natural rock weathering acts as a carbon sink that removes CO2 from the atmosphere. Instead, this can also act as a large CO2 source, rivaling that of volcanoes.
Researchers engineered a strain of bacteria to break down carbon dioxide , converting it into commonly used, expensive industrial chemicals. The carbon-negative approach removes CO2 from the ...
Magma transports carbon dioxide stored in the Earth's mantle to volcanoes, where it is released into the atmosphere. A research team now presents results obtained using a new methodology to ... A research team offers a practical way to make ships CO2 neutral -- or even CO2 negative -- with CO2-capturing solid oxide fuel cells. After 'burning' traditional carbon-based fuels, the ...
As the global energy demand continues to grow along with atmospheric levels of carbon dioxide , there has been a major push to adopt more sustainable and more carbon-neutral energy sources. ...
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Geological Surprise: Ancient Rocks Release As Much CO2 As All the World’s VolcanoesScience, Space and Technology News 2023
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Human footprints in New Mexico really may be surprisingly ancient, new dating showssn-theme-milestones__description___SJHIa
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New tests confirm antiquity of ancient human footprints in New MexicoHumans trod the landscape of North America thousands of years earlier than previously thought, according to new research that confirms the antiquity of fossilized footprints at White Sands National Park in New Mexico using two further dating approaches.
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Rock organic carbon oxidation CO2 release offsets silicate weathering sinkMountain uplift and erosion have regulated the balance of carbon between Earth’s interior and atmosphere, where prior focus has been placed on the role of silicate mineral weathering in CO2 drawdown and its contribution to the stability of Earth’s climate in a habitable state1–5. However, weathering can also release CO2 as rock organic carbon (OCpetro) is oxidized at the near surface6,7; this important geological CO2 flux has remained poorly constrained3,8. We use the trace element rhenium in combination with a spatial extrapolation model to quantify this flux across global river catchments3,9. We find a CO2 release of \n \n \n \n $${68}_{-6}^{+18}$$\n \n megatons of carbon annually from weathering of OCpetro in near-surface rocks, rivalling or even exceeding the CO2 drawdown by silicate weathering at the global scale10. Hotspots of CO2 release are found in mountain ranges with high uplift rates exposing fine-grained sedimentary rock, such as the eastern Himalayas, the Rocky Mountains and the Andes. Our results demonstrate that OCpetro is far from inert and causes weathering in regions to be net sources or sinks of CO2. This raises questions, not yet fully studied, as to how erosion and weathering drive the long-term carbon cycle and contribute to the fine balance of carbon fluxes between the atmosphere, biosphere and lithosphere2,11. Silicate weathering of uplifted rock depletes atmospheric CO2, but oxidation of revealed rock organic carbon supplies CO2, offsetting depletion to a degree dependent on regional geological history.
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Libya flood disaster damaged ancient city but revealed new remainsThe flooding that killed thousands in Libya's Derna last month damaged the ruins at the ancient Greek city of Cyrene in the mountains nearby, but it also revealed new archaeological remains there by washing away earth and stones.
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New Breakthrough in Energy Storage – MIT Engineers Create Supercapacitor out of Ancient MaterialsConstructed from cement, carbon black, and water, the device holds the potential to offer affordable and scalable energy storage for renewable energy sources. Two of humanity's most ubiquitous historical materials, cement and carbon black (which resembles very fine charcoal), may form the basis for
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