Trees produce CO2 when they respire at night, and they produce a little more O2 during the day when they are photosynthesizing...net gain of oxygen.

We humans produce CO2 day and night...and then some. Throws the balance out of whack.

It is just about the most basic and fundamental problem with talking science with those who would rather discuss partisan politics...compare apples to oranges, call it a "debate", and then ignore the problem...

Fish on...

Todd