Cold ecosystems, such as tundra and alpine grassland, are the least responsive to elevated CO 2 , in some cases showing no growth response and complete acclimation of peak-season gas exchange after a few years.
(Cold ecosystems, such as tundra and alpine grassland; are; the least responsive to elevated CO 2) (some cases; showing; no growth response and complete acclimation of peak-season gas exchange after a few years)
Cold ecosystems, such as tundra and alpine grassland some cases
are showing
the least responsive to elevated CO 2
no growth response and complete acclimation of peak-season gas exchange after a few years