Typically this process is invisible as we cannot see O2 or CO2 with our eyes. but using the “Breathing Leaf” experiment, we can turn the unseen into the visible. Here’s how it works: ...

Stomata have been shown to respond to a wide range of environmental conditions, including temperature, water availability, light intensity, and leaf CO2 levels.

David A. Grantz12, Daniel Zinsmeister2, Juergen Burkhardt2, Ambient aerosol increases minimum leaf conductance and alters the aperture–flux relationship as stomata respond to vapor pressure deficit ...