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In highly productive areas, such as tropical and temperate ecosystems, the efficiency of carbon use by microbes decouples from the respiration rate once this exceeds a critical threshold. Photo: pxhere CC0 1.0 Universal CC0 1.0 Deedpxhere CC0 1.0 Universal CC0 1.0 Deed

The connection between microbes and carbon cycle is more complicated than expected

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In some circumstances, a new study explains, microbial respiration, with the resulting release of carbon, can increase even when biomass production remains constant. A factor that must be included in climate projection models
In Southeast Asia, deforestation and land conversion have released more carbon and greenhouse gases than any other activity over the past two decades. Photo: Pok Rie Pexels free to usePok Rie Pexels free to use

Deforestation has made Southeast Asia a net source of carbon

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In the first two decades of the century, according to a Japanese study, the forests in the area released more carbon than they stored. Fires, peatland degradation, and fossil fuels are making things worse
Between 2000 and 2020, approximately 90% of cities worldwide recorded an increase in the extension of urban forests. Photo: vgnavada from the WordPress Photo Directory CC0 1.0 Universal CC0 1.0 Deedvgnavada from the WordPress Photo Directory CC0 1.0 Universal CC0 1.0 Deed

From Paris to New York, urban forests are spreading around the world

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From the French capital to NY, as well as in Denmark and Brazil, the world's major cities are increasingly focusing on tree planting and soil de-sealing. Better air quality, climate mitigation, and biodiversity conservation are the main benefits delivered
The surface of ferrihydrite has mixed areas of positive and negative charges, allowing it to attract both negatively charged substances such as phosphates and positively charged substances such as metal ions. Photo: Jerry Bigham Attribution-ShareAlike 3.0 Unported CC BY-SA 3.0 DeedJerry Bigham Attribution-ShareAlike 3.0 Unported CC BY-SA 3.0 Deed

This is how iron minerals promote soil carbon sequestration

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Iron oxide minerals trap more than a third of the organic carbon in soil. Among them, a study explains, ferrihydrite uses different strategies to capture different compounds
The study, which involved the universities of Aalborg and Vienna, is particularly significant for a country with a strong agricultural tradition such as Denmark. Photo: Jane Tierney Attribution 2.0 Generic CC BY 2.0 DeedJane Tierney Attribution 2.0 Generic CC BY 2.0 Deed

Denmark has mapped national soil microbiome

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The study, which involved the universities of Aalborg and Vienna, holds particular significance for a country with a strong agricultural tradition such as Denmark. The degree of habitat disturbance, the authors explained, affects microbial profiles
Today only 7% of the original surface area of continental peatlands has remained intact, and their climatic boundaries are changing. Photo: SiberianJay Attribution-ShareAlike 4.0 International CC BY-SA 4.0 DeedSiberianJay Attribution-ShareAlike 4.0 International CC BY-SA 4.0 Deed

Climate change puts Europe’s last peatlands at risk

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Currently, a study has found, only 7% of continental peatlands can be considered intact. But climate pressure is increasing, and in the coming years the situation could worsen