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Environment & Energy

hatrack

(64,840 posts) Fri Apr 12, 2013, 12:43 PM Apr 2013

Wondering Aloud: 2/13 Atmospheric CO2 Update 5 March; 12:20 PM 12 April Still No Update For 3/13

http://www.co2now.org

5 replies

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Wondering Aloud: 2/13 Atmospheric CO2 Update 5 March; 12:20 PM 12 April Still No Update For 3/13 (Original Post) hatrack Apr 2013 OP

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

Seasonal fluctuation - most of the landmass in the northern hemisphere means most vegetation as well hatrack Apr 2013 #4

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

Thanks - looks like I went to every Mauna Loa page except the right one hatrack Apr 2013 #3

OnlinePoker

(6,126 posts)

1. You could try the weekly Moana Loa record

Reply to hatrack (Original post)

Fri Apr 12, 2013, 12:52 PM

Apr 2013

398.08 as of 31 March

http://www.esrl.noaa.gov/gmd/ccgg/trends/weekly.html

truebrit71

(20,805 posts)

2. Do you know why the concentration seems to fluctuate?

Reply to OnlinePoker (Reply #1)

Fri Apr 12, 2013, 01:10 PM

Apr 2013

The overall trend seems to be accelerating upwards, but I was unaware that it went up and down during the year..?

hatrack

(64,840 posts)

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

Reply to truebrit71 (Reply #2)

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.

truebrit71

(20,805 posts)

5. Aah...that makes sense..

Reply to hatrack (Reply #4)

Fri Apr 12, 2013, 01:17 PM

Apr 2013

..thanks!

hatrack

(64,840 posts)

3. Thanks - looks like I went to every Mauna Loa page except the right one

Reply to OnlinePoker (Reply #1)

Fri Apr 12, 2013, 01:14 PM

Apr 2013

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