411

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411

Peak carbon dioxide levels surpass 411 parts per million for May

Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory exceeded 411 parts per million in May, the highest monthly average ever recorded, scientists from Scripps Institution of Oceanography at the University of California San Diego and NOAA announced in June.

Also…

410.31

The April monthly average exceeded 410 parts per million for the first time in recorded history

The average concentration of carbon dioxide in the atmosphere was 410.31 parts per million (ppm) for the month of April, according to the Keeling Curve measurement series made at the Mauna Loa Observatory in Hawaii.

This marks the first time in the history of the Mauna Loa record that a monthly average has exceeded 410 parts per million. This also represents a 30-percent increase in carbon dioxide concentration in the global atmosphere since the Keeling Curve began in 1958. In March, Scripps Institution of Oceanography at the University of California San Diego observed the 60th anniversary of the data series, the first measurements of which were 315 ppm.

…and Just a reminder

Links

• Oh, yeah, There’s this…
• Zero Carbon – The Future Called…
• The Fork in the Road
• Shutdown
• Carbon Conversations
• 410.05
• Mitigation, adaption… and suffering | Is there a choice?
• Water water everywhere and… nope.
• Yes, warmer still…
• 1.5 or 2 ? Take your pick!
• Consilience
• Elegy for the Arctic
• Cape Grim
• Flying Blind
• Hot, Hotter, Hottest… again
• Yes, the axis…
• What’s an Epoch? You’re standing in it!