Prof. Zou and others have showed that the effect of elevated temperature on the growth and photosynthesis of G.lemaneiformis was greater than that of atmospheric CO₂ concentration. Under the greenhouse effect (the synergistic effect of temperature rise of 4oC and the increase of atmospheric CO₂ level), the growth rate of G. lemaneiformis was the highest over the other conditions (the temperature rise of 4oC alone, or the alone increase of atmospheric CO₂ level). It is suggested that the sustained climate change (elevated atmospheric CO₂ concentration and ocean surface temperature) is conducive to the production and carbon storage capacity of G. lemaneiformis.