CO2 has a huge effect, actually: Photosynthetic Responses of Trees in High-Elevation Forests: Comparing Evergreen Species Along an Elevation Gradient in the Ce

CO2 has a huge effect, actually: Photosynthetic Responses of Trees in High-Elevation Forests: Comparing Evergreen Species Along an Elevation Gradient in the Central Andes https://pmc.ncbi.nlm.nih.gov/articles/PMC4512032/ https://pmc.ncbi.nlm.nih.gov/articles/PMC4512032/ Evidence that Higher [CO2] Increases Tree Growth-Sensitivity to Temperature: A Comparison of Modern and Paleo Oaks https://pmc.ncbi.nlm.nih.gov/articles/PMC6108346/ https://pmc.ncbi.nlm.nih.gov/articles/PMC6108346/