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Carbon Cycle - Crossref

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Last Updated: 03 October 2022

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The origin and diversification of pteropods predate past perturbations in the Earth’s carbon cycle

Pteropods are a group of planktonic gastropods that are widely used as biological indicators for determining ocean acidification's effects. Here, we determine the phylogeny and time of pteropod evolution with a phylogeno-method database containing 21 new species and new fossil evidence. We obtained the first molecular evidence for a difference between sea butterflies and sea angels, in accordance with traditional taxonomy. Our results show that aragonitic calcifiers have been resistant to severe changes in the Earth's climate cycle over evolutionary timescales.

Source link: https://doi.org/10.1101/813386


Synthetic carbon fixation via the autocatalytic serine threonine cycle

Abstract Atmospheric CO 2 provides a significant threat to life on Earth by causing global warming and climate change. On the other hand, it is the only carbon source with sufficient scalable enough to create a circular carbon economy. According to reports, technologies to capture and convert CO 2 to reduced one-carbon molecules using renewable energy are quickly increasing. The synthetic strain uses formate as the sole carbon and energy source, and it can grow at ambient CO 2 levels, demonstrating the possibility of establishing synthetic C1 assimilation cycles over laboratory timescales.

Source link: https://doi.org/10.1101/2022.09.28.509898


The Influence of Large Bolide Impacts on Earth's Carbon Cycle

The rapid release of large amounts of CO2 into the atmosphere by Humankind's rapid growth of CO2 is a significant planetary experiment. Bolde impacts are largely due to an evident natural process that can produce similar gases over geologically short time spans. When striking a carbon-rich target, bolides dramatically, possibly catastrophically, interrupting the global biogeochemical carbon cycle. Rather, enclosed subaqueous impact structures may have contributed to the Earth's unique carbon cycle.

Source link: https://doi.org/10.2138/gselements.15.5.313


Research on carbon emissions of urban residents’ three types of dining based on the whole life cycle

From the four stages, the upstream raw materials and manufactures, the stage of product creation, the stage of innovation, consumer dining, and the stage of waste treatment were all included. The study found that the carbon emissions of the three dining options in the overall industry analysis were canteen > home cooking; and that the carbon emissions of honey sauce fork-fired were canteen > home cooking > takeaway. The manufacturing of raw materials and finished products is the most significant stage of carbon emissions among the three dining options. The unit processes with significant carbon emissions are other than the raw materials' carbon dioxide emissions, storage and cooking of food items.

Source link: https://doi.org/10.1093/ijlct/ctac069

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions