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Removing a tonne of CO2 from the air and thus undoing a tonne of emissions? Doesn't quite work, says a study. And provides four objections in view of Earth systems.
The new report by the Global Carbon Project shows: Fossil CO2 emissions will reach a record high in 2023. If emissions remain this high, the carbon budget that remains before reaching the 1.5°C limit will probably be used up in seven years. Although emissions from land use are decreasing slightly, they are still too high to be compensated by renewable forests and reforestation.
Storing carbon in the soil can help to mitigate climate change. Soil organic matter bound to minerals in particular can store carbon in the long term. A new study shows that the formation of mineral-associated organic matter depends primarily on the type of mineral, but is also influenced by land use and cultivation intensity.
The Deutsche Forschungsgemeinschaft (DFG) is to fund a Research Unit in the Jena Experiment for a further four years with around five million euros. The new focus is on the stabilising effect of biodiversity against extreme climate events such as heat, frost or heavy rainfall.
Carbon sinks on the land surface mitigate the greenhouse effect. An international team of scientists has now determined that the vast majority of Europe’s total above-ground carbon storage is provided by the forests of Eastern Europe. However, this carbon sink has declined, mainly due to changes in land use.
Dr. Ana Bastos, group leader at Max Planck Institute for Biogeochemistry in Jena, was awarded the Beutenberg Campus science award in the category „outstanding junior research scientist”.
The Global Carbon Project presents its new report on global greenhouse gas budget trends. For the current year, CO2 emissions are projected to be slightly higher than before the pandemic, only slightly below the 2019 peak. If emissions remain at this high level, stabilization of the climate and achievement of the Paris climate targets is questionable.
A new study reveals that surprisingly small increases in atmospheric CO2 lead to detectable effects on ecosystem functioning. Using simulations of the land surface model developed at the Max Planck Institute for Biogeochemistry, an international team of scientists finds that enhanced CO2 first affects entities of the carbon cycle such as vegetation productivity and the extension of leaf area.
Microorganisms in aquifers deep below the earth’s surface produce similar amounts of biomass as those in some marine waters. Applying a unique, ultra-sensitive measurement method using radioactive carbon, researchers were able to demonstrate for the first time that these biotic communities in absolute darkness do not depend on sunlight.
Microorganisms decompose falling leaves, thus improving soil quality and counteracting climate change. But how do these single-celled organisms coordinate their distribution of tasks? An international research team has investigated this hitherto poorly understood process.