02-13-2021, 08:51 PM
I posted a satellite photo of Mauna Kea & Mauna Loa covered in snow on the Discoveries... on Mauna Kea thread. Some comments about climate change were made afterward (not really about discoveries on Mauna Kea), so I thought I’d try and move that discussion over here which does include both discoveries on Mauna Loa and climate change.
Last week on February 5th the Mauna Loa Observatory measured the highest CO2 reading in its history:
According to the CO2_Earth Twitter feed, the highest daily average of carbon dioxide concentration in the atmosphere was recently recorded at the Mauna Loa Observatory in Hawaii.
They reached 419.45 parts per million on February 5. That's up from 413.85 parts per million a year ago.
"The daily means are based on hours during which CO2 was likely representative of 'background' conditions, defined as times when the measurement is representative of air at mid-altitudes over the Pacific Ocean," the U.S. National Oceanic and Atmospheric Administration's Global Monitoring Laboratory states on its website.
"That air has had several days time or more to mix, smoothing out most of the CO2 variability encountered elsewhere, making the measurements representative of CO2 over hundreds of km or more.
According to the CO2_Earth Twitter feed, the highest daily average of carbon dioxide concentration in the atmosphere was recently recorded at the Mauna Loa Observatory in Hawaii.
They reached 419.45 parts per million on February 5. That's up from 413.85 parts per million a year ago.
https://www.esrl.noaa.gov/gmd/ccgg/trends/monthly.html
Last week on February 5th the Mauna Loa Observatory measured the highest CO2 reading in its history:
According to the CO2_Earth Twitter feed, the highest daily average of carbon dioxide concentration in the atmosphere was recently recorded at the Mauna Loa Observatory in Hawaii.
They reached 419.45 parts per million on February 5. That's up from 413.85 parts per million a year ago.
"The daily means are based on hours during which CO2 was likely representative of 'background' conditions, defined as times when the measurement is representative of air at mid-altitudes over the Pacific Ocean," the U.S. National Oceanic and Atmospheric Administration's Global Monitoring Laboratory states on its website.
"That air has had several days time or more to mix, smoothing out most of the CO2 variability encountered elsewhere, making the measurements representative of CO2 over hundreds of km or more.
According to the CO2_Earth Twitter feed, the highest daily average of carbon dioxide concentration in the atmosphere was recently recorded at the Mauna Loa Observatory in Hawaii.
They reached 419.45 parts per million on February 5. That's up from 413.85 parts per million a year ago.
https://www.esrl.noaa.gov/gmd/ccgg/trends/monthly.html