Mean dry air mole fractions of biospheric CO2 in the lowest 200 m above surface over Europe. During daytime, CO2 is taken up by plants through photosynthesis (blue). At night the biosphere respires CO2 back to the atmosphere (red). Hourly biospheric CO2 fluxes are based on the Vegetation Photosynthesis and Respiration Model (VPRM) kindly provided by MPI Jena

Simulation: Yu Liu, ETH; Animation: Dominik Brunner, Empa. Download AVI