About: Erlanger et al., (2024), Nature Geosciences (link)

In our new paper, we use stream water chemistry in two river catchments of the central Apennines to infer the CO₂ fluxes from surficial weathering reactions as well as the CO₂ degassing from depths.

In the east, where the crust is thick and cold, carbon fluxes from silicate weathering dominate the carbon budget. In contrast, the western catchment is underlain by thin and hot crust. Here, carbon fluxes are dominated by CO₂ degassing from the crust and mantle, and these fluxes are up to 50-times higher than the carbon drawdown from silicate weathering.

You can check out a more detailed press-release by the GFZ here.