Converging towards a common representation of large‐scale photosynthesis

A commentary on: Walker A.P., et al. (2021). Multi‐hypothesis comparison of Farquhar and Collatz photosynthesis models reveals the unexpected influence of empirical assumptions at leaf and global scales. Global Change Biology 27(4): 804-822. Much ecological research has focused on determining how different environmental factors limit photosynthesis. Far less attention is placed on how to model the transition between limitations accurately as drivers change. Whether such changes are modelled as a single switch or there is an intermediate period of co‐limitation can have a substantial impact on the estimated levels of photosynthesis.