Increasing populations and the search for social and economic opportunities are driving people to move from rural to urban areas. Approximately four percent of the global area is urbanized and half of the world's population lives in urban areas. Natural ecosystems are converted into urban landscapes dominated by residential areas with interspersed green areas such as parks or lawns.
such as provision of clean water as well as the function of such ecosystems as climate regulators," says Professor and Head of Center Klaus Butterbach-Bahl from the Pioneer Center Land-CRAFT at Aarhus University.. The study reveals that urban greens are not only sources of greenhouse gas emissions but that through altered soil processes the intensity of emissions are increasing.
"Our findings suggest that urbanization significantly affects soil processes and emissions, leading to increased nitrous oxide emissions and reduced methane uptake by soils," Klaus Butterbach-Bahl says. Nitrous oxide is a potent greenhouse gas, contributing to climate change and stratospheric ozone depletion, while methane is a powerful but short-lived greenhouse gas that has a warming effect. By altering these emissions, urbanization can potentially amplify the adverse impacts of climate change.
Professor Klaus Butterbach-Bahl emphasizes the significance of the research,"Our study shows that urbanization can exacerbate climate change through changes in soil emissions. Urban green areas are hotspots for greenhouse gas emissions, and the transformation of natural landscapes into intensively managed
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