Articles | Volume 18, issue 17
Biogeosciences, 18, 4985–5010, 2021
https://doi.org/10.5194/bg-18-4985-2021
Biogeosciences, 18, 4985–5010, 2021
https://doi.org/10.5194/bg-18-4985-2021

Research article 13 Sep 2021

Research article | 13 Sep 2021

Slowdown of the greening trend in natural vegetation with further rise in atmospheric CO2

Alexander J. Winkler et al.

Video supplement

Leaf Area Changes of Sub-Saharan Africa Throughout the Satellite Era Michael Böttinger and Alexander J. Winkler https://doi.org/10.5446/51213

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Short summary
Satellite observations since the early 1980s show that Earth's greening trend is slowing down and that browning clusters have been emerging, especially in the last 2 decades. A collection of model simulations in conjunction with causal theory points at climatic changes as a key driver of vegetation changes in natural ecosystems. Most models underestimate the observed vegetation browning, especially in tropical rainforests, which could be due to an excessive CO2 fertilization effect in models.
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