Could forcing so much "change" to the environment cause more problems?

[Cosmic]

I don't mean the pollution and such but the strong effort to lower the carbon footprint. 

I won't pretend to know everything here, I am no expert but from what I remember, plant life needs carbon to produce oxygen. If we were to suddenly reduce the amount of carbon... Couldn't that essentially kill off a lot of plant life, disrupt ecosystems, and eventually lead to death and destruction across the board?

Maybe that is the plan with pushing all this stuff? I really don't know. 

[tmcom]

True if CO2 went to zero all plant life and animals would die.

But l wouldn't worry all of those summits do nothing, CO2 just keeps rising, mainly due to China, India and other countries building more coal fired power stations.