Rising atmospheric CO2 generally decreases plant transpiration, affecting soil moisture, runoff, stream flows, the return of moisture to the atmosphere and surface temperature . However, in some regions, these can be offset by increased leaf area  driven by elevated CO2, land use change, nitrogen deposition and effects of climate change itself . Increased ozone can impact plant functioning, reducing transpiration . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report