First Time: 400ppm CO2 in Atmosphere

NOAA announced today that the planetary carbon dioxide measurement has reached “400” for the first time in recorded history.  Here’s the link.

http://researchmatters.noaa.gov/news/Pages/CarbonDioxideatMaunaLoareaches400ppm.aspx

Of course actual recording of CO2 in the atmosphere goes back less than 100 years, but proxy readings from Antarctic & Greenland ice sheets show we haven’t seen this concentration in hundreds of thousands of years (or longer).  Note the current level is higher than the “current level” shown on the chart from several years back.  NOAA is the source of the image.

evidence_CO2

So as Cliff Mass up at the UW says…we’re conducting a grand experiment to see what happens when we pump our atmosphere full of carbon dioxide.  Time will tell.

Chief Meteorologist Mark Nelsen

50 Responses to First Time: 400ppm CO2 in Atmosphere

  1. dharmabum says:

    I heard that last Friday Mother Earth sent a very personal T-mail (terrestrial) to her planetary sisters asking for advise: “It seems I have developed a issue with a personnel problem, it about these pesky parasites, and now I have developed a terrible heat rash! What shall I do,the usual sauna and ice bath followed by an alluvial sand scrub?”

  2. schmit44 says:

    5/12/2013 Oregon (All) Temperature Summary

    Warmest:
    High:97 at LAKE OWHEE AND O(2400 ft)
    Low: 71 at BROOKS(187 ft)

    Coldest:
    High:50 at Timberline Lodge(7001 ft)
    Low: 32 at MCKENZIE (4800 ft )

    Largest Diurnal Change: 47 degrees
    HEREFORD (88/41 ) (3599 ft )

    Heaviest Rainfall:
    0.27″ at MEARES Cape Mear(1421ft)
    0.21″ at EW1133 Lake Oswe(341ft)

  3. AdamInAumsville says:

    70
    79
    81
    84
    87
    81
    75
    70
    81
    83
    85
    71

    These are the high temperatures in Salem for the first twelve days of May. Looks like July! I doubt I’ll see anything quite like this again in my lifetime. I was a bit warmer at my location the past couple of days at 87 Saturday and 77 today. Definitely looks like we’ll pay for this over the next couple of weeks…at least.

    • Mark Nelsen says:

      May 1997 was very similar…of course it took 16 years for it to happen again! I agree, payback time is here.

    • Punxsutawney (aka HIOPHIL) at work by Sunset High elev ~280 says:

      KHIO will need to end up 5 degrees below average every remaining day this month just to get back to the monthly average (+-0.0) degrees for May.

      I’d say almost zero chance of that happening.

    • Mark Nelsen says:

      I give it a 40% chance

    • Timmy_Supercell (Klamath Falls @ 4200') says:

      May 1997 was also the same month and year there were was an outbreak of severe weather in Eastern WA and NE Oregon! Tornado Watch issued by SPC. Perhaps one this year?

  4. runrain says:

    The FOX12-sponsored Rock N Roll half marathon Sunday looks like it’s going to be wet. At least it will be relatively mild. And a free beer at the end!

  5. *BoringOregon* says:

    Lol and we get snow next week :).

  6. vernonia1 says:

    Sure nice to have Langley when PDX radar is down 🙂

  7. runrain says:

    The grass is breathing a sigh of relief today. Still really warm in the house though, and I see the sun is trying to peek out again.

  8. paulbeugene says:

    Next two weeks is payback time for the past few weeks of abnormally dry, warm weather.
    I suspect we are in for a 6-8 week period of below normal to normal temps and intermittent wet periods, with cool unstable set ups to give us one hit wonder thunder and pea sized hail a few times.
    As Seattle WSFO says, true summer won’t start until July 12.

    • Sifton says:

      I suspect your incorrect, & this is P-town. Everyone knows summer starts here July 5th!

    • JJ97222 says:

      The Rose Festival Low is here and it is going to top off the snow pack and to drench the Memorial Day Campers but yes it will be Summer July fifth depending on if this isn’t an earliy autumn. What ever it is put away the shorts for awhile.

    • Tyler Mode in Battle Ground says:

      July 8th this year since July 5th is a Friday. We can’t have nice weather going into the holiday weekend.

      That being said, it would be nice to get a nice dump of rain 1-2″ every week for the entire summer 🙂 I just wish it could happen quickly, not stretched out over the entire week.

  9. pappoose in scappoose says:

    NATIONAL WEATHER SERVICE PORTLAND OR
    855 AM PDT SUN MAY 12 2013

    MODELS ALSO SHOW QUITE A BIT OF INSTABILITY FROM ABOUT SALEM NORTHWARD ON MONDAY AFTERNOON…SO THERE IS ALSO A THREAT OF THUNDERSTORM ACTIVITY
    MONDAY AFTERNOON INTO THE EARLY EVENING HOURS.

    • Dave in SW PDX (235') says:

      Always nice to have t-storms in the local forecast!

      Monday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 65. South southwest wind 7 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
      Monday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 47. South southwest wind 8 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

      http://en.wikipedia.org/wiki/Asinara_donkey

    • pappoose in scappoose says:

      Looks good. Chance of a Stray Albino Donkey from 11am to 11pm!

  10. Tyler Mode in Battle Ground says:

    A few sprinkles up here this morning, but so warm. Currently 60 after a low of 57.

  11. archangelmichael2 says:

    So was that (weak) marine layer that made the sun vanish this afternoon?

  12. schmit44 says:

    5/11/2013 Oregon (All) Temperature Summary

    Warmest:
    High:95 at BLALOK( 277 ft) & JOHN DAY RIVER A(400 ft) & Chinook(399 ft) & CW1075 Boardman(322 ft) & John Day River B(305 ft)
    Low: 70 at JOHN DAY RIVER A(400 ft)

    Coldest:
    High:56 at DW4535 Cannon Be(23 ft) & YACHTS Yachats(82 ft)
    Low: 34 at MCKENZIE (4800 ft )

    Largest Diurnal Change: 47 degrees
    RED BUTTE (87/40 ) (4460 ft )
    FOSTER FLAT (85/38) (5000 ft)

  13. *BoringOregon* says:

    Sry guys thank it’s not going to rain !?!?

  14. Josh in Sherwood says:

    Well Mark, your cold bias strikes again. Mid upper 80’s today.

  15. WEATHERDAN says:

    For the first 11 days of May Salem is averaging over 15 degrees above normal for highs. Newest NWS 7 day forecast still calls for around 70 degrees for maximums, so still above normal. And tomorrows highs are still forecast at 76 for Salem. This is by far our warmest start to may in over 120 years of weather records. Currently under mostly sunny skies Salem is 82 degrees.

    • JJ97222 says:

      82 degrees in the house windows open best May ever or in 120 years give or take a few, perfect!

  16. JJ97222 says:

    Another great day today just flawless weather great night for my daughters prom they are going to have fun I remember her last couple of proms were May Washouts not this year! Awesome!

  17. Brian says:

    Interesting, at the very least the ever increasing CO² should help crop yields. When you burn all the stored Carbon in coal, oil, gas, wood, et al, it is bound to increase the concentration in the atmosphere after all these fuels are just stored sunlight anyway. Eventually it will return to a stored form. Just think of what would happen if they found a way to efficiently extract and use methyl hydrates from the ocean floors.

    • dharmabum says:

      When it does return to a stored form, (who knows in how many million years that will be!) man will not be around to see it, how sad.

  18. The striking part of that graphic is that following those big peaks of CO2 are periods of massive glaciation. What’s worse, ice age or heat wave? Time will tell………..

  19. schmit44 says:

    5/10/2013 Oregon (All) Temperature Summary

    Warmest:
    High:98 at John Day River B( 305 ft) & DW0462 Umatilla(390 ft)
    Low: 63 at John Day River B(305 ft) & BLALOK(277 ft) & WAMIC MILL(3320 ft) & K7POW Malin(4341 ft) & DW0462 Umatilla(390 ft)

    Coldest:
    High:50 at YACHTS Yachats(82 ft)
    Low: 32 at Sand Creek (US 9 (4525 ft ) & DIMLKE (4726 ft ) & KIRK (4519 ft ) & MCKENZIE (4800 ft )

    Largest Diurnal Change: 52 degrees
    EW2055 Prairie C (89/37 ) (3547 ft )

    Heaviest Rainfall:
    0.39″ at CINNAMON(4834ft)
    0.32″ at SELDOM CREEK(4875ft)

  20. karlbonner1982 says:

    I’m amazed with all the facts about rising CO2 levels, that Mark can talk about this without coming across as a little spooked. I mean, we’ve put a KNOWN greenhouse gas into the atmosphere in quantities never before seen during the existence of humanity. Regardless of what’s happened to the actual climate up to this point, to me hitting the “Big Four Oh Oh” in itself ought to be taken as a big alarm.

    • Mark Nelsen says:

      It is disturbing, but it’s done and clearly it’s going to keep rising so now we’ll see what happens. I try not to worry about or fixate over things I have no control over. But I get your point.

    • dharmabum says:

      Fixating on anything is probably incapacitating, but a healthy worry or concern is not only responsible, but a good way for the dialog and consciousness to be elevated toward a reasonable solution.

  21. pappoose in scappoose says:

    NATIONAL WEATHER SERVICE SEATTLE WA
    900 PM PDT FRI MAY 10 2013

    A STRONGER CLOSED UPPER LOW WILL MOVE ACROSS THE AREA ON MONDAY. ENERGY AT THE BASE OF THE TROUGH WILL LIFT NE AHEAD OF THE LOW
    BRINGING ADDED MOISTURE. THE UPPER FLOW WILL BE STRONGLY DIFFLUENT AND COOLING ALOFT WILL CREATE UNSTABLE CONDITIONS. THIS LOOKS LIKE A GOOD CASE FOR THUNDERSTORMS ACROSS THE AREA. MAY NEED TO CONSIDER ADDING THIS TO THE FORECAST.

    • Mike says:

      Very glad the rain is coming back now. Wonderful cooling on its way.

      About the co2 levels…. I’m glad I might get to see what happens in the near term anyway.

    • pappoose in scappoose says:

      I’m all in for some moisture. It’s too early for worries about my trees going up in flames.

    • pappoose in scappoose says:

      We must be relentlessly on watch.

      NATIONAL WEATHER SERVICE PORTLAND OR
      839 PM PDT SAT MAY 11 2013

      ONE OTHER ITEM THAT WILL BEAR WATCHING IS THE POTENTIAL FOR SOME CONVECTION WITH AND BEHIND THE FRONTAL PASSAGE. NAM BUFR SOUNDINGS ARE INDICATING SOME DECENT INSTABILITY AS THE TROUGH COMES THROUGH ON MONDAY AFTERNOON. IN
      COORDINATION WITH NEIGHBORING OFFICES WILL ADD A SLIGHT CHANCE IN THE EVENING FORECAST PACKAGE.

  22. Sifton says:

    2nd marine layer forecast failure this afternoon……..dang!!!

  23. ocpaul says:

    “THE SKY IS FALLING”. No, wait, that happens Sunday night into Monday.

  24. Hal in Aims says:

    giant tropical plants……..return of the dinosaurs??

  25. snodaze says:

    “research”-matters? — I know I’ve heard something similar to that before… Hmm, oh, “media”-matters…

    no thanks, I’ll pass.

    • Mark Nelsen says:

      I had to look that one up since I’ve never heard of “media matters”…now I see what you mean!

      No, I referenced a NOAA website. Not sure why they chose a similar name to that other organization.

  26. runrain says:

    (Cough, cough), First, (cough, cough)

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