Surely you don't believe that the CO2 concentrations at one of the worlds largest volcanoes is representative of the CO2 levels across the whole globe.
Spot the person who does not know why the Hawaii site was chosen.
1) Because high altitude means the station is above a lot of local weather
2) Because it is free of interference from cities
3) Because being in the middle of the ocean presents quite a neutral image
4) Because volcanic activity is easy to measure and filter out
And yes, I am sure you will now argue that the scientists are wrong and you are right because you know more than they do.
Spot the person who doesn't find the fact it being at the crest of one of the worlds largest and most active volcanoes a bit odd...
1. Lots of places of a high altitude and I wasn't aware that CO2 concentrations only count in "good weather"..
2. Why not have it in the middle of the sierra Nevada mountains, or any number of places both reclusive and higher up? Mount Hood perhaps?
3. It not i the middle of the ocean, its on the crest of one of the largest and most active volcanoes on the planet. That volcano forms an Island and that Island is inhabited by people and has some cities on it as well...
4. really? then why aren't they filtered out of the global CO2 charts and graphs? They can't and aren't because they are too many and too variable to be certain. So is this one. They do not always put out the same amount of gases or particulates, that means any claims as to levels from a volcano are a best guess. Making any "filtering out" dubious at best..
Again they can put the observatory almost anywhere,but they chose the worlds largest and most active volcano for a reason..
BTW..One more time because you people seem to keep ignoring this fact..
The 400 ppm measurement is from Mauna loa observatory. The global mean they came up with is now at 396 ppm as per the original link...
Trends in Carbon Dioxide
Up-to-date weekly average CO2 at Mauna Loa
Week beginning on May 5, 2013: 399.50 ppm
Weekly value from 1 year ago: 397.07 ppm
Weekly value from 10 years ago: 377.85 ppm
Monthly
Recent Monthly Average Mauna Loa CO2
April 2013: 398.40 ppm
April 2012: 396.18 ppm
and the global most recent
Recent Global CO2
March 2013: 396.52 ppm
March 2012: 393.57 ppm
Now you see the difference yet? No? okay here's the kicker..
Last 5 days of preliminary daily average CO2
May 16 - 399.74 May 15 - 399.59 May 14 - 399.81 May 13 - 399.86 May 12 - 399.46
notice the latest measurement is lower than the one 2 days before it and the one the day before that? And notice the earliest of the 5 day account is .28 below most recent one? That much variance in just 5 consecutive days and you don't think the fact it's near a volcano has any bearing on CO2 measurements???
LOL, wake up man..