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Environment & Energy

(64,839 posts)

4. Seasonal fluctuation - most of the landmass in the northern hemisphere means most vegetation as well

Fri Apr 12, 2013, 01:15 PM

Apr 2013

So, when deciduous trees drop or leaf out, it's enough to push the annual cycle up and down.

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You could try the weekly Moana Loa record OnlinePoker Apr 2013 #1

Do you know why the concentration seems to fluctuate? truebrit71 Apr 2013 #2

Aah...that makes sense.. truebrit71 Apr 2013 #5