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CO2 and the GHG index

Posted: Wed May 01, 2019 7:59 am
by Admin
NOAA's aggregate GHG index shows total radiative forcing from all GHGs ... https://www.esrl.noaa.gov/gmd/aggi/aggi.html

The aggregate is now equivalent to 496ppm CO2.

CO2 ... https://www.esrl.noaa.gov/gmd/ccgg/trends/

Methane ... https://www.esrl.noaa.gov/gmd/ccgg/trends_ch4/

CO2, N2O, methane and more ... https://www.climatelevels.org/

Re: The aggregate GHG index

Posted: Wed May 01, 2019 8:01 am
by Admin
There are 43 greenhouse gases ... https://theconversation.com/global-stoc ... ming-77796

The index has risen 41% since 1990 ... https://research.noaa.gov/article/ArtMI ... since-1990

Re: CO2 and the GHG index

Posted: Sat May 25, 2019 11:52 pm
by Admin

Re: CO2 and the GHG index

Posted: Sat May 25, 2019 11:53 pm
by Admin
CO2 increase in 2018 was a record ... https://www.research.noaa.gov/article/A ... -INCREASER

Re: CO2 and the GHG index

Posted: Thu Jul 02, 2020 4:04 pm
by Admin
Atmospheric CO2 hits new record despite COVID shutdown ... https://www.washingtonpost.com/weather/ ... cord-2020/

Re: CO2 and the GHG index

Posted: Mon Mar 11, 2024 1:44 pm
by Admin
Global CO2 now at 424.55 parts per million (ppm), according to Mauna Loa Observatory, Hawaii (NOAA).

It went up 4ppm the past year, compared with 1ppm the year before.

Re: CO2 and the GHG index

Posted: Mon Mar 11, 2024 1:49 pm
by Admin
NOAA's aggregate GHG index shows total radiative forcing from all GHGs ... https://www.esrl.noaa.gov/gmd/aggi/aggi.html

The aggregate is now equivalent to 523ppm CO2.

In April 2019 (date of the first post on this thread) it was 496ppm.

CO2 ... https://www.esrl.noaa.gov/gmd/ccgg/trends/

Methane ... https://www.esrl.noaa.gov/gmd/ccgg/trends_ch4/

CO2, N2O, methane and more ... https://www.climatelevels.org/

Re: CO2 and the GHG index

Posted: Mon Mar 11, 2024 2:00 pm
by Admin
Past three years of methane increase have been unprecedented. Methane is a far stronger greenhouse gas than CO2. Figures from NOAA, I stitched the table together.