It seems we didn’t reach 400PPM last week after all. The data has been revised. Ooops.
‘Carbon dioxide measurements in the Earth’s atmosphere did not break the symbolic milestone of 400 parts per million at a Hawaiian observatory last week, according to a revised reading from the nation’s climate observers.
The National Oceanic and Atmospheric Administration (NOAA) revised its May 9 reading at the Mauna Loa observatory in Hawaii, saying it remained fractions of a point below the level of 400 ppm, at 399.89′
Source: LA Times
Oh well, there’s always next week…or maybe not, since spring in the Northern Hemisphere tends to reduce CO2 as plants suck up all that CO2 that some claim is not plant food.
Still time to get t-shirts though.
H/t to Marc Morano
Laurie Bowen says:
May 16, 2013 at 12:05 pm
Are they wrong . . . if not, we have a very long way to go. All I am saying is that Air is mostly nitrogen and we are not dead.
Agreed, but I was reacting on the story of David Wozney, you did link to… It contains too many errors and only confuses people…
I was just using the article for that reference . . . don’t know what errors he made but, his chemistry bedazzled me. . . . . as I am not a chemist, and would have to go back to school to fact check . . . I think that is why our society specializes AND why it is so imperitive that we do not get “bamboozled” by a “concensous” of “scientist”! Integrity is imperative, for trust. And no ONE can be expected to be infallable. And that is my “big picture” opinion. . . . . And . . . on that perspective I will always be redundant. (as so many real scientists are)! Or maybe it’s just a German thing or . . . and age thing? Need another study! /sarc . . . . I think*
*some people say: only sometimes!
FIRST CORRECTED DAILY reading above 400ppm EVER
– Now keeling/Scripps have re-adjusted upwards their May13 reading
” was subsequently changed on May 15 to a value of 400.17 ”
– from their special note http://keelingcurve.ucsd.edu/special-note-on-may-13-2013-reading/
stewgreen says:
May 17, 2013 at 2:19 am
Thanks for the regular updates! At last the magic 400 ppmv was officially past. Not that the world did collapse or so, but the hype was only a few days too early, not a full year…
– Unbelievable after answering YES to my question saying “is the May 13th the first ever reading over 400ppm ,cos NOAA had readjusted the May9th figure ?” Keeling/Scripps have now gone back and erased the “yes” comment and replaced it with “Our May 9 reading for the 24-hour period used by NOAA remains unchanged at 400.08. All readings posted are preliminary.”
– But we know from the LA Times story and the NOAA website it was adjusted downwards.
– So the Keeling/Scripps Twitter readings have been over 400 on 3 days May 13th, 16th, 17th but as he says “All readings posted are preliminary” so they may be adjusted later