[sadface]

Great information here. This is well understood on my end. I just wanted to make a quick point because the topic was on food consumption and I don't think many people ever truly connect the dots between carbon atoms in the atmosphere -> carbon atoms in their salad -> carbon atoms in their breath (atmosphere).

[schiffern]

Indeed, and I should have been clear that I was elaborating on your excellent post, not suggesting any error/omission/ignorance on your part. My intent was to comment on the idea ("if you just consider this one fact, it could be misleading"), not to say anything negative about you personally. My apologies that it came across that way.

So no worries, and no criticism intended. After all, how could anyone say everything that's possibly relevant in one comment? And more to the point, why in hell would anyone want to? :)