Phosphorus enrichment does not enlarge the predicted CO2 fertilization effect on forest carbon sequestration

Proceedings of the National Academy of Sciences, Volume 123, Issue 12, March 2026. <br/>SignificanceForests absorb much of our CO2emissions, slowing climate change. However, the magnitude of this effect may be constrained and uncertain because many forests are limited by low soil phosphorus (P). It is widely assumed that adding P would …