How much climate change would occur "IF"?

Question

All the creatures on Earth took a deep BREATHE at the SAME TIME?

Answer 1

Wow...that would create an intense global low pressure system, which would bring global cooling immediately.  The change to a cooler climate would no doubt be intense, but would only last until everyone exhaled.

Answer 2

None.  

1)  Any given hour, all the creatures on Earth DO breathe at the same time.  An hour's time is an extremely short period when talking about global cycles.

2)  Breathing is part of the natural carbon cycle of this planet.  The theory of man-made global warming states man is causing climate change by adding carbon through the burning of fossil fuels.  The theory states this carbon was trapped in the Earth for millions of years, and was not part of the modern balance.

3)  CO2 isn't a driving force of climate change, but a lagging indicator.  Changes in CO2 levels have ALWAYS FOLLOWED changes in the climate in the past.  If your car stops BEFORE you step on the brakes, odds are something ELSE stopped it.

4)  Breathing has no effect upon solar activity (the true cause of this warming trend).