There's zillions of resources but here's one to get you started
Cellular respiration - Wikipedia, the free encyclopedia
In short - wouldn't that be cool (cutting out carbon). Faster than light travel would also be really cool
And the same without sarcasm - I don't think it's possible. What you can slightly affect is the amount of CO2 produced per oxygen consumed via your diet.
Look up respiratory quotient:
Respiratory quotient - Wikipedia, the free encyclopedia
Ie. being in pure fat metabolism (for example when you wake up and before you have breakfast), significantly lowers the RQ, thus delaying the urge to breath. HOWEVER - it is not optimal for freediving performances (in my opinnion), but it may make it more comfortable (and explain why so many people make pb's in morning statics)
