Adding Greenhouse Gas Measurements to Weather Monitors

Earth Networks will install sensors to measure the levels of carbon dioxide and methane in the air at 100 sites


Climatewire













Share on Tumblr

Reprinted from Climatewire with permission from Environment & Energy Publishing, LLC. www.eenews.net, 202-628-6500


Climatewire

2 Comments

Add Comment
View
  1. 1. R.Blakely 04:33 AM 1/14/11

    More CO2 measurements is a fantastic idea. Propaganda about CO2 increases will then be eliminated. CO2 emissions are being blamed for climate change, but increasing measurements of the "evil gas" will show that CO2 concentrations vary with location.
    Methane measurements are useless since methane cannot alter climate. This is because methane absorbs photons that are already TOTALLY absorbed by water vapor.
    CO2 absorbs sunlight at 1.5-microns, and so temperature is reduced in the daytime. CO2 absorbs 15-micron photons at night, and so temperature is maintained at night. Therefore, CO2 REDUCES climate change.
    Climate shifts are reduced by CO2 emissions. The fact that CO2 absorbs photons from sunlight is being ignored by scaremongers.

    Reply | Report Abuse | Link to this
  2. 2. Chris G in reply to R.Blakely 03:20 PM 1/14/11

    "...CO2 concentrations vary with location."

    Yes, everyone with more than a first-glance awareness of climate science knows this.

    http://www.nasa.gov/topics/earth/features/co2_map.html

    But, just because there are waves on the surface does not mean that the tide is not rising.

    "...water vapor."
    So, tell us, how much water vapor is there at or above the mean emission altitude of 5-6K? Hint: the answer is, 'Not much'.

    "CO2 absorbs sunlight at 1.5-microns, and so temperature is reduced in the daytime. "
    The absorption spectrum of CO2 looks like this
    http://webbook.nist.gov/cgi/cbook.cgi?ID=C124389&Units=SI&Type=IR-SPEC&Index=1#IR-SPEC

    It has absorption bands within the solar spectrum and the earth spectrum. It's affect on inbound solar shortwave is at the small end of the tail in this graph

    http://en.wikipedia.org/wiki/File:Solar_Spectrum.png

    It's affect on outbound earth longwave is in the fat part of what the earth emits. A comparison between the two can be seen here

    http://earthguide.ucsd.edu/virtualmuseum/images/RadiationSpectrumEmittedFromSun.html

    It should be pretty plain that CO2 has less of an effect on the inbound than the outbound.


    "CO2 absorbs 15-micron photons at night, and so temperature is maintained at night."

    Uh, yeah, one of the signatures to be expected from a GHG explanation for warming is a greater rise in nighttime lows than in daytime highs. This is what is observed. In contrast, for example, if the sun were putting out more energy, you'd expect daytime temperatures to rise more than nighttime.

    How does a greater increase at night than during the day imply a reduction in climate change?

    Any more half-truths to spread around?

    Just from the sites above, does it look like the people involved in the science are unaware that CO2 also absorbs some of the solar radiation?

    Reply | Report Abuse | Link to this
Leave this field empty

Add a Comment

You must sign in or register as a ScientificAmerican.com member to submit a comment.
Click one of the buttons below to register using an existing Social Account.

More from Scientific American

See what we're tweeting about

Scientific American Editors

More »

Free Newsletters


Get the best from Scientific American in your inbox

Solve Innovation Challenges

Powered By: Innocentive

  SA Digital
  SA Digital

Email this Article

Adding Greenhouse Gas Measurements to Weather Monitors

X
Scientific American Magazine

Subscribe Today

Save 66% off the cover price and get a free gift!

Learn More >>

X

Please Log In

Forgot: Password

X

Account Linking

Welcome, . Do you have an existing ScientificAmerican.com account?

Yes, please link my existing account with for quick, secure access.



Forgot Password?

No, I would like to create a new account with my profile information.

Create Account
X

Report Abuse

Are you sure?

X

Institutional Access

It has been identified that the institution you are trying to access this article from has institutional site license access to Scientific American on nature.com. To access this article in its entirety through site license access, click below.

Site license access
X

Error

X

Share this Article

X