Extended Data Fig. 5: The areas where C3/C4 vegetation is expected to respond primarily to CO2 changes. | Nature Geoscience

Extended Data Fig. 5: The areas where C3/C4 vegetation is expected to respond primarily to CO2 changes.

From: Increased interglacial atmospheric CO2 levels followed the mid-Pleistocene Transition

Extended Data Fig. 5

The green grid shows the site where the increase in C4 vegetation due to the decrease in CO2 from 285 to 185 ppm is greater than the increase due to the decrease in precipitation and temperature from the PI level to the LGM level. Vegetation was predicted using LPJ-DGVM under the PI and LGM conditions30,31,32. A very few regions where the increase in C4 vegetation is significant show an empirical response of C3/C4 vegetation to CO2 variation, characterized by hot and seasonally dry (savanna) climates, and could serve as targets for replicating our CO2 reconstruction.

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